ya know, this is something that always bothered me about japanese romance manga. Many of them front-load all of the stress of the relationship in the initial interaction. Confessing is treated like it's as important as proposing and it's usually made into their first interaction at that. They need to take notes from this, take it easy, don't make things more important than they are, ease into a relationship. Don't go in expecting the passion to last forever. When you calm down, I hope the one you see as your lover remains as a best friend.