so i feel kind of funny posting here, but hope that maybe i can help. as a guy, that is.
i don't buy the whole thing about you waiting to see what goes down after the show. if the other girl is "nothing" or "not what you think" then why did he bring it up in the first place.
"no, see it's just the show, honey. oh, by the way, i'm talking to someone else but that has nothing to do with anything. i just thought i'd bring it up. i don't know about being with you long term, but i'll figure it out. meanwhile, i'll just be talking to (insert other girl here) until i do."
cherry pie, how old are you? not an insulting question. just a straight forward one. i don't mean anything by it. it's just that, typically (it seems) that younger women will have a higher tolerance for crap like that than others who have been through the crap before and recognize the possible sign to take the initiative and leave him wondering if HE'S screwing up by pulling this shit.
i love women, and love to treat them right. am i saint? (i say this in general terms) no. i'm presently married, and have been for 3 years this week to a remarkable women. she has issues, but i think it's her "female-ness".

and before her there were others, with varying dgrees of relationships, or even just "friends with benefits". either way, one thing i've always done was be straight with them. it's just something that y'all deserve. even if one of my friends is fucking with a girl, i'll give him my 2 cents, whether he wants it or not. unless she's one of the infrequent examples of girls who just aren't worth the treatment. (yes, those do come along).
i mean, boy, do y'all drive us nuts, but we take it because we love y'all. or, at least, i do.
sorry about the drifting, there.
if you really think that you can talk through this, try to do just that. pick a time when you think you can maintain your emotions, but at the same time, make sure he can control his. after all, you're going to address something that he is obviously the cause of. see if you can bring to light what the other girl has to do with all this. tell him that, regardless of what you hear, this is only to bring out the whole truth, and figure out what needs to happen from there. for pete's sake, dont lose your cool. when something like this is going on, trust me, he knows it's his doing, and could be majorly on the defensive about it. so tread lightly. if only to get the info you need. then maybe you can make a decision on your own.
although i advocate being straight forward, there are often times where you need to "carefully" approach a delicate situation.
if that's not you're forte', then just straight up tell him to quit the shit and figure out what the hell he's doing. you know, put up or shut up. i mean, what, is he gonna run to talk to someone else every time a show gives him a hard time? whatever.
however, you don't come across as that type of girl. if you were, you probably wouldn't be asking for help from others. you sound like you really would like this to work. so i hope it does. just please string yourself along too badly.
wow, that was a long rant. sorry.
