The other female and I are not as close as we once were.

I'm sort of in a polyamory relationship with a guy. We have a mutual friend that's a girl and we're all pretty cool with one another.

However when we first started out they had sex in the same room as I and it was extremely uncomfortable. At the time they both were very sorry about it and wished they had never done, especially the girl.

Well fast forward some months to last week. We're in another country taking a trip together and they do it again! Look I know they have sex and that doesn't bother me anymore. But they do it again while in the same room when I'm trying to sleep. It's so uncomfortable and disrespectful to me. I tried to explain this to my partner but he said I don't have the right to be upset. The girl on the other hand I'm super disappointed in. Last time she told me she regretted doing that and would never do it again but she did. The trust and respect I have for her is gone and I can't even have a conversation with her anymore.

But it's my fault for being upset over it. I got over it because my partner was getting really mad at me for being any kind of upset over it. When I wanted to hang with his mom and siblings that day instead of them, he got upset because I was avoiding them. So i decided to hang with them but then he expects me to not have an attitude or bring it up.

I'm still bothered by it especially with her. I didn't expect this of her but him, I know he doesn't care. Am I wrong for being upset over this? I would never do this to any of my friends or family.