i don think the guy wil do anything. i think thats quite normal. me and my ex are fine friends but as i really loved him alot, if i found he had a new gf i'd need to know who she was, if she was pretty, how did they meet, how long had they been together. and i would try to split them up. not because i still lov the guy but just out of jealousy. its hard to explain but i couldnt just let go of someone special to someone else like that. i think eurasian needs to explain to the guy that they are best frinds but make it clear thats all you are and all you ever will be