@okabekudo It's fine, isn't it? Just like no guy in the universe would be okay with a modern tsundere girl that keeps insulting and physically assaulting him, even to the point of breaking his bones, day in, day out. Not too rare a trope in shounen. In fact what's going on here is probably more believable because she might still be a little drunk, plus she was actually thinking earlier she would like to be younger to have a chance with this particular guy. She's also depressed by all of her friends getting married or being in relationships, so she's vulnerable. She also did have a moment to freely study him while he was sleeping (or pretending to sleep), so it's not like she would have been attacked out of nowhere in the dark alley by a rapist. I'd say that's enough for a fictional story.