Girlfriend wants to sleep topless with a thong when sharing a room with my guy friend?

Anonymous
On a weekend trip with a guy friend and my girlfriend, in the hotel room, my girlfriend is getting stripped down to her sexy thong panties to go to sleep. she even acknowledged herself that my friend was still awake. I made it clear in a polite way by saying a couple times "hey here's a Tshirt to put on to sleep in" but she refused. She was walking around in the dim room in just the thong panties fully knowing I didn't like it. Then she tried to force me to cuddle with her, I told her I wasn't in the mood, she tried to physically force me to cuddle until it got to the point we had to go to the car outside to discuss. Without me even mentioning it, she said "I know you're pissed about me being topless" I take care of this girl in every way including financially, I'm 36, she's 26. I don't think it's too much to ask to respect me when I made it clear it didn't make me comfortable. So what does she do? We come back in the room, and she peels her clothes right back off (sun is coming up by this point, friend is still laying in bed awake wondering what's going on). I know not everyone cares much about this sort of thing and doesn't mind their girl being half naked around other people/friends, but I'm not a fan of it personally and I made that clear in a sensible way. What do you think?
Girlfriend wants to sleep topless with a thong when sharing a room with my guy friend?
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