are interested in romantically reveals they're in a relationship? if i'm really enamored with the person i'll stop laughing and talking, which freaks them out. Of course this is temporary, after about 2 days i'll be fine, but less hyper around them. But my initial thought would be "oh...no" i hate bad shock it's a shitty feeling.
"right, it's like, how long is it polite to pretend to continue to listen to someone after they've revealed they've got a boyfriend? ..." Russell Brand.