Please recommend romance dramas where the FL got to know the ML very well. His likes and dislikes, his sense of humour, etc. but something happened. The FL travels through time, the ML gets amnesia, or something else along those lines. When the FL reunites with the ML he has forgotten her or doesn't know her, and she has to try to pretend not to know him or has to try to hide her feelings for him. But sometimes she slips and there's a moment between them, the ML is given a glimpse of the FL's true nature or feelings, or the ML has a chance to realize the truth.
Bonus points if the moment happens because the FL knows what food the ML likes or doesn't like, his fears, things that will make him sick, something that will make him laugh.... anything like that.
A few examples of dramas that have dynamics that are somewhat like what I'm looking for: