Wait, what happened with Jekyll and Lanyon.
Jekyll got into some occult shit and wanted to explore the mystical aspects of science and Lanyon was all "Jekyll that's nonsense, you're a doctor ffs!" and Jekyll didn't appreciate that and when Jekyll didn't continued to pursue his supernatural interests Lanyon cut ties with him..
“I suppose, Lanyon,” said he, “you and I must be the two oldest friends that Henry Jekyll has?”
“I wish the friends were younger,” chuckled Dr. Lanyon. “But I suppose we are. And what of that? I see little of him now.”
“Indeed?” said Utterson. “I thought you had a bond of common interest.”
“We had,” was the reply. “But it is more than ten years since Henry Jekyll became too fanciful for me. He began to go wrong, wrong in mind; and though of course I continue to take an interest in him for old sake’s sake, as they say, I see and I have seen devilish little of the man. Such unscientific balderdash,” added the doctor, flushing suddenly purple, “would have estranged Damon and Pythias.”
Lanyon has been at odds with Jekyll for nearly a full decade by the time the story takes place. Jekyll likewise feels that their scientific differences are irreconcilable.
Dr. Jekyll was no exception; and as he now sat on the opposite side of the fire—a large, well-made, smooth-faced man of fifty, with something of a slyish cast perhaps, but every mark of capacity and kindness—you could see by his looks that he cherished for Mr. Utterson a sincere and warm affection.
“I have been wanting to speak to you, Jekyll,” began the latter. “You know that will of yours?”
A close observer might have gathered that the topic was distasteful; but the doctor carried it off gaily. “My poor Utterson,” said he, “you are unfortunate in such a client. I never saw a man so distressed as you were by my will; unless it were that hide-bound pedant, Lanyon, at what he called my scientific heresies. O, I know he’s a good fellow—you needn’t frown—an excellent fellow, and I always mean to see more of him; but a hide-bound pedant for all that; an ignorant, blatant pedant. I was never more disappointed in any man than Lanyon.”
They had a close friendship once, when they were younger but they are so radically different in their beliefs that they're no longer compatible.
Jekyll only reaches out to Lanyon in the book at all because he starts to feel desperate and thinks Lanyon can help him get the chemicals he needs. When Jekyll turns into Hyde the shock of what he's seeing kills Lanyon.
Now there is some interesting subtext to Lanyon's reaction to Jekyll and his closed mindedness playing a part in his downfall. Lanyon has a consistent character trait and it is that he does not take well to being challenged in his beliefs. He is inflexible and not even inclined to any open-mindedness for the sake of his friend. Rather than try to respect or tolerate Jekyll's studies he dismisses him as being "Wrong in the mind," and "Too fanciful." and it's not because he thinks what Jekyll is doing is dangerous or even unethical, if that was the case he'd have said so. He just thinks its unscientific and for Hastie Lanyon, that is enough to kill a lifelong friendship for more than a decade.
When he sees the irrefutable and terrible proof that Jekyll was right it kills him. It destroys him mentally and physically and his health deteriorates. He refuses to even speak of Jekyll to Utterson because he is so frightened and disgusted by Hyde.
This is one of the incidents where a queer subtext absolutely COULD work if you handle it well but I feel like it's more in line with someone seeing an addict at their lowest point. Where the signs of addiction start to become physical. Jekyll is reaching out to Lanyon because he's desperate and it's one of those moments where I as the reader have to question Jekyll's sincerity.
He appeals to their friendship and attests that he has never born Lanyon ill will, that he'd have cut off his left hand for Lanyon's sake. This doesn't really line up with his convo with Utterson from before and if we consider how desperate Jekyll is to recreate his potion and how far he's fallen it reads very much like an addict trying to squeeze some last drop of good will from one of the few life lines he has left. He pretty much admits as much when we read his confession at the end of the book.
"If I sought to enter by the house, my own servants would consign me to the gallows. I saw I must employ another hand, and thought of Lanyon. How was he to be reached? how persuaded? Supposing that I escaped capture in the streets, how was I to make my way into his presence? and how should I, an unknown and displeasing visitor, prevail on the famous physician to rifle the study of his colleague, Dr. Jekyll? Then I remembered that of my original character, one part remained to me: I could write my own hand; and once I had conceived that kindling spark, the way that I must follow became lighted up from end to end."
Lanyon feels some sense of responsibility towards Jekyll but when he goes to retrieve Jekyll's notes and chemicals he believes Jekyll must be completely out of his mind. He is again, very locked into his belief that Jekyll is not a well man and he even arms himself with a pistol in case things get ugly. (They do, just not the kind of ugly Lanyon was expecting)
The physical state in which Lanyon finds Hyde highlights his small stature, the oversized clothing of fine cut and quality and his loathsomeness. Also his desperation. He's jumpy, he convulses. He's just coherent enough to give Lanyon a chance to stay so that he can wittness the transformation. . "choose, a new province of knowledge and new avenues to fame and power shall be laid open to you, here, in this room, upon the instant; and your sight shall be blasted by a prodigy to stagger the unbelief of Satan.” (dramatic ass).
Even in his pitiful state Jekyll/Hyde cannot resist winning this decade long argument. He is selfish to his core. However, when Lanyon does stay Jekyll tells him EVERYTHING that he has done while under the influence of Hyde, including the Carew Murder. Lanyon doesn't reveal to us the full extent of what he heard, it's up to our interpretation, but, he describes it as such: "As for the moral turpitude that man unveiled to me, even with tears of penitence, I cannot, even in memory, dwell on it without a start of horror"
That's pretty vague, could be a confession of acts of extreme violence or sexual depravity. Jekyll's confession gives us slightly more insight in that there was definitely a sadistic angle to his crimes. He enjoyed harming people and inflicting pain on them.
As far as Jekyll's reaction to Lanyon's horror. Jekyll's actions and his reactions are his biggest tells throughout the book. He has SOME fleeting regret when he sees Lanyon's reaction to him, he describes it as a "drop," which I found very interesting because tbh I'd think if you were friends with someone you'd feel more than a "drop" of regret.
There's room for interpretation but I don't think Jekyll cared for Lanyon in the end. Maybe he had some residual affection but Lanyon was ultimately a means to an end and he couldn't resist gloating.
But after the gloating he had a strong need to confess and Lanyon was still a tie to his past. Jekyll wanted some kind of absolution. He tried to find it by balancing Hyde's evil with acts of good when he was Jekyll and he felt compelled to tell someone who was his friend once who he really was, even if it was ugly and unacceptable. For as little of it as there is, there is plenty to analyze in Jekyll's relationship with Lanyon and how deep Jekyll's own selfishness runs.