Is he stalking me? Or am I crazy?

My ex and I (19) broke up at the end of April. The cops took him after we got into a really bad fight and charged him with DV. He’s out and awaiting court hearings. He told me that he would talk to me if I could prove he would be safe from anymore court issues and blocked me. I think he thinks I feel rushed to save him because I used to be codependent. He was really controlling. But I realized I was only attached to the idea of what he could be versus what he was and the feelings fell off. Something to note too is that when we were together, he didn’t like one of my friends in particularly, because it was someone he worked with and she wasn’t a great worker. He would ask me to “play spy” basically and talk to her for him, which is what’s partially sparking my paranoia. And for the whole 4 years we talked, he never left me alone for more than a few hours. I also have had a more dangerous incident of a diff ex having someone “work for him”.

Anyways, I made friends with this girl from his work. She was older: a couple grandkids. When he was in jail, she took my number and said she wanted to keep in touch. Ive caught this ex having one spy (his closest work friend viewed my tik tok and message me right after court and they tried to erase it by blocking me but I saw it) and then something weird happened with the woman but idk if it’s just paranoia or if something seems genuinely weird. Basically, the one time she mentioned that this girl from their work asked Grandma about what she knew about the case. Then she calls me the other day and weirdly starts telling me that she thinks my ex is targeting her because he keeps sending her home suddenly (but I know the company and I think it’s just a work thing) so now she doesn’t like him (my other ex had that tactic of “wanting to help and hated him”). But she kept pushing the idea. And then she was like “yeah and I told you how (closest work friend) asked me about the case last time”. I said “I thought that was (person)”. She kind of stopped and was like “yeah well they both did”. Then she mentioned how he’s still sick (he was sick in jail) and looks bad. Just seems weird.

My mom said that she thinks my ex is using her to get me to feel bad for him. But idk if maybe she’s just older and that’s why she seems awkward about things? Idk. I guess it also seems weird that someone older would bother with something like that.