I'm so protective of Victor Frankenstein, because everyone is like "the creature is actually completely right and he should have just made a second creature and it would be fine" or "he shouldn't have abandoned his creation" and like, come on.
First of all, he didn't abandoned the creature. He basically spent 9 months obsessing of creating this thing because (a) his mother died and he developed a morbid fascination with death to cope and (b) his father, instead of explaining why alchemy was a bad idea, just dismissed his interest out of hand. But the thing was that it wasn't //actually// supposed to work. And he also isn't eating or sleeping and he is mentally Not Well. But then the creature opens it's eyes and it's terrifying because even though it should be beautiful, being made of beautiful parts, it is still made of fucking corpses.
So, Victor passes the fuck out and wakes up after the creature has escaped. And then he's like, wtf was that?? Am I going insane?? He doesn't go looking for the creature because he thinks he made it up in his head. I think his friend was also like, "hey, dude, I think you just have a fever."
And then he finds out that his 6yo brother has been MURDERED and his childhood friend is accused of having killed the child, so he goes home. He can't even say, "hey, I think I made a monster that did this" because no one will believe him. And this creature shows up and tells him that it killed his brother simply because it hated Victor. It killed a young child because it wanted to hurt Victor. Now it wants Victor to make a second creature like the first.
And, for the record, the creature has been having a hard time because its a giant walking corpse and people aren't giving it a chance to prove that it can read Shakespeare. Here's the thing. The creature is smart. It reads classic literature. It speaks well. It is also cunning. After snapping William's neck, it frames Justine by slipping William's gold locket in her apron pocket.
Victor takes responsibility for this. He is aware at this point that he has fucked around and found out. He feels guilty about his little brother's death, and the execution of his friend. He agrees to create a second creature out of fear, but then decides that he will accept his fate and let the creature kill him because he is afraid that, given how terribly the first creature turned out, he will be endangering more people. What he didn't count on was that the creature would not actually kill him (he is its only shot at getting a companion, after all) and would instead kill his best friend and his wife.
The creature is lonely, but it's first response to rejection was not to seek its creator and ask for a companion. Its response was to murder people weaker than it, then seek out a companion from Victor through threats of violence. Why would he want to help it at that point? Why would he trust it?