Am I really Ok with my girlfriend sleeping with other people...

...if they are my friends? I often draw the line there, and sometimes further. Part of me does not really want to know these other people at all. But can I really say I'm with who she chooses to sleep with if I want to mentally pretend they don't exist? Or that they're just abstract concepts without a face to attach to them?

That said, I don't have this problem with FWBs or not so much if I am guy #2 or more. I found out an FWB was also sleeping with a friend. I think my problem is that this potentially changes our friendship, with the other guy I mean. Now things might just be weird,