k.laroline. klaus lost romantic interest in caroline rather early on. i used to be a hardcore k.laroline shipper, but the more i've thought about it, the less it makes sense? ( from both perspectives tbh but im of course focusing on klaus ). now i won't say klaus doesn't enjoy a good chase when pursuing a potential partner, but there's definitely a limit to that; stemming from a mix of his ego, paranoia, and trust issues. and after numerous times of her being used as "klaus bait" and using his interest / affection for her as a way to lower his guard so the mf crew could attack him and / or his family, i don't see him truly forgiving that, considering his ability to hold grudges and how personally he takes shit like that. while they had some positive interactions for sure, a large portion of them were her being hostile or faking nice for her friends to enact a plan. now i adore caroline, and she had every right and reason to make moves against him, but klaus would never see it that way. any trust he may have had in her would've been obliterated, and his romantic feelings would've died too. maybe some day, after many years have gone by and wounds of the past had time to heal, they could've had something. but from what we're shown in canon ( excluding anything that might've happened in legacies bc i've never seen it fdklas ), i don't see how it's plausible it could've happened from klaus' pov. so yeah, anyway, he definitely doesn't dislike her and i certainly see friendship being plausible for them, but he did move on from his romantic feelings for her. however!! this is not me saying i hate k.laroline or won't write it at all - i definitely would with proper plotting. this is just to say for my canon, klaus stopped pursuing her in a romantic way long before they slept together, which i don't count as canon for my klaus either.