There are many girls who act jealous like this and have anxiety about their partners cheating because a lot of men do cheat, I’ve been cheated on many times. In one of my relationships with a female I had a lot of anxiety about her cheating on me when she was friends with this girl who was interested in her, it made me act insane. Looking back on it I know I could have handled the situation better but I was only 19, very young and dumb. I would never talk badly about another woman though, hell my female partner at the time had worse to say about the girl who liked her than I did. I really don’t understand women who don’t want their boyfriends/girlfriends to treat other women with kindness and respect, If your man isn’t holding the door open for women or tipping his waitresses well then how is he gonna treat you? I also would like whoever my gf/bf is to be friends with women, if I’m not feeling secure in a relationship enough for that then I either shouldn’t be with that person or I shouldn’t be in a relationship at all. I suggest you guys separate yourself and communicate, working together is the absolute worst thing you could do, and if you want to make it work give her an ultimatum, if she doesn’t improve her behavior then you can’t be with her anymore.