Does this sound like a person over their ex????

So I’ve been with my gf for almost two years now. I really love her and want to spend the rest of my life with her. Recently we’ve been talking about having a child together. She seems like she wants to move forward but I’m seeing some things that are making me question if she wants to do it for the right reasons.

She has a child with her ex. They were together for five years before they broke up and I question whether she’s actually over him but I know if I bring it up to her, it’s going to be an argument. She’s told me that he has tried getting back with her and tries to talk to her when he picks up their daughter, asking her to come over. That definitely pissed me off so I approached him about it and he denied it. I was really heated and called him a liar among other things; told him to leave my girl alone and I guess I threatened him. Yeah it went that far.

I’m starting to think she’s been lying to me all this time. Since we’ve been together I rarely see him call her, he only responds to her texts and he only texts her on his own once a week when he comes to pick up their daughter. It’s like she wants me to think he wants her and I’m not sure why she’d be doing this. She told me he got married and since then she’s been in a funk and something tells me the only reason she wants to have a child with me is to make him jealous. I feel like I’ve been used honestly. She’s always talking about him and how much she hates him. She’s tried to get my brother to ambush him. She goes out of her way to get his attention. For example, she told him she thinks their daughter has Covid and insisted he take her to get tested since he had her. I suspect she wanted an excuse or a way to be in communication with him. She did nothing but complain that he would only text her but wouldn’t actually talk to her. When the child was with us, I didn’t notice ANY symptoms of Covid yet she’s telling him she did. She goes into these rants about how he’s rude to her then complains that he’s impossible to coparent with because he only wants to text with her.

I’m not sure what to do. I think her ex is happy in his relationship and isn’t thinking about her like that and it bothers her a lot. It’s like she wants him to want her. I’m so upset because I love this woman but I sometimes I feel like I’m being used. If she could, I think she’d jump at the chance to get back with him 😢. How can we ever have a life if she’s stuck on this guy?

Edit….@Lauren, yes we are both women. I’ve only been with women but she’s had relationships with both. Sometimes I feel like she’s only with me to help get over him. Idk I’m just questioning a lot of things lately. His getting married seems to have triggered her anger, hate, and resentment towards him. They’ve been broken up for about 6 years. Would you still be bothered by your ex if you were really over him? That’s what I keep asking myself.