Talk to her, dont scare her and dont loose urself too. Listen to whatever she say, dont interrupt, but in the end tell her ur opinion in a cool-adult like manner on what u think about it. dont go all pissed off on her admiring another guy. then give urself few days to think on what she has said... usually when a couple decided to talk, if one of them loose temper or assume it was like this or that, makes harsh decision, thats when it wrecks everything.