Gods honest truth this relationship does not sound its working 1 bit. If you have trackers on each other or just him theres no trust. Which i can understand.
And if my gf told me shes loves her ex still and is back with him… id prob go on a bender as well lol and probably try and get you back. Im just being honest here. But you also dont deserve the shit you get from him. Me personally id leave and start a fresh if i was you. It sounds like it will never end .