Long story ahead. I (25M) Went on a date with a coworker(19F) back in January and nothing worked out because she wasn’t over her ex (alpha widow). Said okay whatever and we are friends because it’s best to not make work suck for each other (I know I know, don’t shit where you eat). Like last month I got her to send nudes twice and that’s about all we’ve done but other than that we are very good friends, as much as a woman and man can be anyways. We flirt a lot at work, and she does get jealous when I talk to other girls at work and has told me on occasion that she feels like I’m “replacing her”. Anyways, Her ex lives out of the country for work and he came back due to Corona. She told me he wanted to hang out, to which she said no and I, knowing how this shit goes, said “he’s going to try a little harder now, maybe hang the possibility of a relationship in front of you to try and get you to go for it” because he wouldn’t commit to her in the 8 months he was here before he left and sure enough he said “I’m willing to try us again” and it worked. Saturday she told me they are “practically dating” (lol) and I’ve entered a LTR a couple weeks ago so I’m not sweating.

Here’s the thing. He’s insecure as fuck. He asked her how many dudes she’s been with since they separated (lol) and he didn’t like her answer and asked if he was the best (lolx2) and of course she reassured him. She brought up the other day at work that he “wanted to beat me up” and when she told him I was in the Marines (like it matters) he said “he’ll hire someone to beat me up”, and she said “he was just joking” and I asked how I came up and she said “idk he remembered you took me on a date” and I think she was lying about that. He also doesn’t know she’s sent me nudes.

Tonight she texted me (after I left her on read for 6 hours because I was busy) “omg I have something funny to tell you” and she said her “bf” if that’s what we are calling him called me her “work boyfriend” and brought up how I see her more than he does. It did rub me the wrong way because I never think about this guy and he seemingly can’t keep my name out of his mouth. She said she handled it and he was “joking” and I think he isn’t actually joking but she’s rationalizing it like that and he would try something in person if we were in the same room. Also a coworker said “I love your relationship with anon, it’s so cute” joking today and to her and she told me and like, why bring it up? Isn’t she in a “relationship”

How should I handle him, her and the situation? How do I play it?