Ex still in the picture

So my bf and I have been together for a year now. When we first met, he couldn’t be in a relationship with me because he still had feelings for his ex. Ok I respect that. But she has the car they both owned. I don’t have a problem with it at all. The problem is, it’s still under his name. She supposedly took care of this back in January. Not only that but she still has her cell phone under his bill. She gives him the money monthly but he always has to remind her. I’m not okay with this. I gave him a whole year to take care of it without me having to tell him anything. We’re supposed to move in together next month but He hasn’t done anything about his ex. I told him I wasn’t moving in until this was fixed. Idk about you but I don’t want my bf to still be connected to an ex (unless it’s by a child, but in this case it’s not). He doesn’t want to tell her because “he doesn’t want to be left with the bill of whatever she owes on the phone” which is about 250. She has a man so why not get her phone with him? I told him to give her a timeline, like for example, “hey can you take the car out of my name and your cell phone off of my bill by the end of October?” Is that really to much to ask of him? Am I overreacting? I love him but I’m so over this

Yes, the car is paid for.