yeah, bro...she should go...and you should go do something with your buddies....a concert is not a place that she would throw away a good 2 year relationship.
I mean if something was going to happen it could happen anywhere... Like the night before your junior prom after u been dating for 2 years and you walk in on it....oh wait that might just be me...HA HA HA...
she goes, you go out, everyone has a good time.
just dont sit at home calling every so often.
and depending on the seat will depend on how wild it can get.. right in front of the stage there are always idiots that want to start throwing fists, elbows, feet, and whatnots.....but usually people will take care of other people for the most part. other than that no worries at all...now if it was inflames, Korn, Mansion, Demu...might get a bit wild