you and ginny are friends and you have a crush on her boyfriend harry potter and she doesn't know you like him alot but you don't show it or tell anyone and as y'all are in the corridor you see ginny and harry kissing and you feel a pang of jealousy so you interrupt saying "hey guys" they look at you and smile

Ginny: "oh hi! Sorry we didn't see you there"

Harry: "yeah we were just hanging out"