I met this man at work. We both work from home. We haven't met. I plan on going to meet him in two weeks. When we started talking he was in a situationship with a woman. He told me he wasn't ready to be in a relationship and that he was happy with how things were going with her. I had just broken up with my bf of two years myself but was ready to date again. The more we talked, the closer we got. We flirted and he called me his work wife. We started sexting. He told me he would stop having sex with her as I saw it as cheating on me. She wasn't happy about it.

They had sex again and he told me. I almost ended things but gave him another chance. He told me would stop and he did.

However he said that she's his best friend and he would never get rid of her for me. No matter how close they are or were at some point. She's staying in his life. She means a lot to him.

We've been talking more and more and we call each other bf and gf. We like each other a lot. We're intimate. We're practically dating.

I don't trust her. I spoke with her once and she told me she's not going anywhere and she's going to win him back. He told her we were just friends. I told my bf what she said and he told me he was gonna talk to her.

Yesterday he messaged me and told me she wants to have dinner one on one with him. I said absolutely not. I don't trust her. He said he would refuse but then he told me she was upset when he said no and he decided to go. She insist on it.

I'm upset. AITAH?