Hi Guys, I was seeing this girl and we used to meet on the weekend. I was kinda serious about it. But she has his male best friend who she said is gay (the gay friend and hir partner live in the same apartment). She often went to the flat of the gay friend and stayed long hours at night. Yesterday, she went to Vienna with both of them and is staying in the same AirBnB with them.

I don't care what's their sexuality (two man). I am just angry why she is staying in the same apartment with them. So I broke up. Did I do right thing?