He broke up with me because of my friend

One of my friends moved to a different state to be with this guy a long time ago. Me and her just kind of drifted apart. I still checked up on her, congratulated her when she got married and got pregnant. She got more busy and I was pretty sad I didn't have my friend anymore. I understand she was married with kids but I feel she still could have made time for me. She ended up getting a divorce with the guy and moved back to our state. Just a city over. She didn't really try to talk to me at all. She let me know she was moving back and we made plans but she always canceled them because something always come up. I was on bumble and I found her ex husband on bumble. We started talking and based on how he was talking to me, it sounded like he didn't know who I was. So she never once mentioned me to him. Now I understand how what I did may have been wrong, but I don't feel like it was because, A. We weren't really close anymore and B. They has been divorced for a year now. We started talking, and I ended up meeting him half way at a hotel to spend a weekend together. Me and my friend had also started talking, but not a whole lot.

I have no idea how. Idk if he told somebody, but some how she found out we were talking and we had met up and stuff and she called me saying how fake I am to date her ex husband and she was going off on me. At the end of the day I'm a grown women so I can do what I want. Im guess she messaged him about and he got mad at me because he said I lied to him and pretended I didn't know who is ex wife was. He ended up breaking it off. He said he has kids with her and dating one of her close friends is too much drama for him. This whole situation is so dumb and honestly could have been avoided if she actually talked about me to him. But no. I wasn't good enough for her to even mention me to them when they were together. Maybe it was wrong to date her ex husband, but like I said, he didn't even know about me.