Okay, so I'll give you my absolute favourite romance prompt that I use in almost every romantic setting because I think it's just so cute

A sits under a tree, stands on a balcony or whatever place one might consider, thinking about B, because they're in love with them. And out of pure coincidence, B comes to them and starts chatting. After they talk a bit, B confesses their feelings and they kiss and live happily ever after <3