I feel people talk a lot about Klamille, Klaroline and Klayley and completely ignore the influence Aurora had over Klaus.
Now, I don't really like any of the main ships of Klaus: Candice herself confirmed in a live no long ago that the producers started writing the whole Klaroline ship because the reaction of the fans to their first scene (which they didn't intend to turn romantic) was massive and positive, so their whole relationship was fan service from beginning to end. I like Klamille, but the fact that she was her therapist and they fell in love always creeped me out. And Klayley, well, they weren't even a couple but I feel that the potential was there.
But Klaurora? They fell in love in a time where neither of them were pure evil, and Klaus had been literally turned into a vampire two years before. And she wasn't "crazy", as people try to make her look: she was just bipolar, in a time where help was nowhere to be found. And Tristan just made that worse through their lives as vampires.
Now, this is my personal opinion, one I made by watching the show, you don't have to agree with it at all. Personally, I don't think Klaus and Caroline were in love with each other (not Caroline, unless she was playing hard to get in which case go girl ig), at least not in the Mystic Falls era. In New Orleans, however, they had both grown, and they seemed more comfortable in the other's presence (I still don't think they would have lasted as a couple, as I say in this post) so if they wanted to persue a romance then, go ahead.
But back to the point, Klaus was literally being an asshole in love talking about the smell of Aurora's hair and writing love letters to her: he was down bad for the woman, and it's canon that her breaking his heart is what made him the ruthless and abusive bitch we all know in canon ("you knew that your secret betrayal was the cause of everything i became" 3x05, said by Klaus to Elijah in a rather hypocrite fight).
And it's not like he got over her as his life continued: he painted her, eight hundred years after their breakup, and judging by the fact he said it became the tomb of his memories of her, he probably painted her a thousand of times before. When he showered her that painting, a millennium later, he confessed that thinking he could forget her is one of his biggest mistakes, meaning that while he was flirting with Cami and Care he still hadn't gotten over his first love. And with the way he was looking at her, I doubt it was a lie.
And they literally started being together again not even a day after she showed up in New Orleans. He didn't give a damn about Camille, or Caroline. His "however long it takes" or his "I would have found you" were completely forgotten in his mind, his own sister was kidnapped by her and he couldn't care less because he was busy showing her New Orleans, something Lucien pointed out.
Elijah noticed as well, because the whole "Do you love her" wasn't directed towards Camille, and with the way Klaus answered his question it was clear. And Klaus also asked him to never say Aurora's name in his presence (I like to think that being the little shit he is Kol always said her name whenever he was around and that's why he got daggered so much, but that's a personal headcanon of mine).
Klaus only lashed out at her when he found out Rebekah was at the bottom of the ocean (Emma who lmao), not safe as Aurora had promised him after fucking. And he did say he intented to keep his love promises to her, made in the modern world, hence bye bye his two blonde lovers (also, the fact that they resemble Rebekah so much, his favorite sibling who he's always been obssesed with, it’s so fucking weird).
He didn't chose Camille or Caroline over her, Aurora pushed him to it and he seemed pretty upset about it in the whole episode of their dramatic breakup. And Camille did say more than once she believed Klaus still loved Aurora, something Klaus didn't actually deny (he said he didn't care about her, that's all.)
I know Klaus did love Camille, he did even after a decade of her death, and I know he was obssesed with Caroline, but I personally believe that the one he loved the most has always been Aurora.
Funny enough, in 3x18, after her murdering Camille, his actual love interest, turning her into a vampire, and trying to kill his whole family, he didn't even try to pull away when she leaned to kiss him. He could have tried to bite her, or to back away, but he didn't.
And don't even get me started on him keeping her alive even after the serum left her sistem. Klaus couldn't kill her, and he was clearly distraught when Hayley inyected her that serum to send her to sleep. This fucker couldn't kill her, and he needed his girlfriends to do it.
Anyways, ik this is a unpopular opinion, but I always found the messed up dynamic of Klaurora so entertaining to watch. Aurora loved him until her death, and I think he continued to love her until his as well, knowing how much of a obssesed yandere he is.
And try to ignore any grammatic mistakes lmao, I'm spanish and I was eating a donut writing this.
