There is a lot to unpack from what you posted and I am a bit confused about the timelines. But, if I understand correctly, you have moved out and now live in your own apartment (hopefully withe the dogs; they can be so healing to be around). At some point you said that you were going no contact, but it almost seems like that isn’t the case? If you are not no contact, please go there immediately. Do not let your ex or her toxic family keep dragging you back into their drama. I get it, this situation has been an enormous part of your life for three years. And it is hard to stop engaging in it, to stop defending yourself. To quote an overused bit of advice, “Don’t let them live rent-free inside your head.”

Block every one of them. Do not engage. Breathe in the freedom and stop dwelling on the past. Continue therapy and work on learning how to avoid similar relationships in the future. You sound like a good person.