I think people are being too optimistic about being able to fix Christine's behavior with a talking to, no matter how serious it is. Girls have tried telling him to mind his hands, and he'd proudly claim to have changed.... yet remain the same.
The thing about Chris is that he can only behave how the TV teaches him to, so as long as there are quirky flirty animu girly girls, or heck, even the cosplayers he follows on social medias, he'll try the same, because TV is just like real life. Plus, his twits reveal he feels like he is a celebrity(Which, tbh, he kinda is), so people should be happy that they got a kiss from him. I seriously think he can't be left off alone at these types of gatherings, because he simply doesn't know how to behave. And even if he was on his best behavior, it feels like nowadays anyone could manipulate him into doing something dumb. So some kind of company could probably help avoid things like these.