<human>: I'm[29/M] going to a close friend's wedding - I'm traveling a very long way, and I'm going to be a part of the wedding, so my friend offered to put me up in the wedding hotel since I'm already paying a lot to travel there.  She asked if I'd be ok sharing a room, and the only other member of the wedding party who's not paired off happens to be female.

My girlfriend[25/F] of 8 months hates the idea.  She doesn't know this woman, and she's worried that in the wedding atmosphere (especially the alcohol) there's an unreasonable level of temptation.  I went to highschool with the girl I would be sharing with, and I've assured my girlfriend that there's absolutely no chance of anything between us (or anyone else for that matter) but she thinks it's just not normal on principal for a guy in a relationship to sleep alone in a room with another woman.

Anyway, I feel awkward about it because I don't want to ask my friend to pay for another room just because my girlfriend is being jealous (I would offer to pay but I know my friend will never let me).  In the context of the friendship it feels like a really weird thing to ask for - we always help each-other out, and over the years  we've crashed in some pretty strange sleeping arrangements to save a few bucks traveling - and I feel like my girlfriend doesn't totally get this because she's still supported by her parents (grad school) and doesn't have to worry so much about money.

Can you condense the text into a few key points?
<bot>: So girlfriends of reddit - would you be OK with it if your boyfriend shared a hotel room with another woman if it would help his best friend save money on her wedding?