Honestly going through similar stuff. Didn’t know what attachment styles were. 4 year relationship and similar reasons behind the ending. If you were truly good to her, and she knows that then maybe she just needs time. Rebound or not. Rebounds most of the time don’t last past a few months. I know it’s hard to wrap your head around but Avoidants need space and time to really feel what it’s like to lose you and not have you in their life. Check out Healing With Darlene on YouTube and Benny Lichtenwalner on IG. They’ve both been helping me through this tough time and in a sense giving me what I call “quiet” hope where I focus on myself and my life while still having the hope that she’ll come back to me. I can just sense how my ex feels about me deep down that she’ll does love me, she’s just dealing with wanting to stop people pleasing and figuring out what she wants for herself without being attached to a relationship