To have continued agruments followed by weeks with no contact is not a good situation. I sense that you need to know if this relationship can be repaired? It seems as if he is allowing this “ex” to become a wedge in the relationship.
I realize that you have invested 3 yrs. in this relationship, but if you were able to work things out there is a chance the same thing could happen all over again. Even if he calls (and I sense that he will) and you resume the relationship, there is about a 40% chance of it lasting for the long-term.
You might be much happier with someone who would not play these mind games with you. You deserve to be happy and I don’t think that he is bringing much happiness into your life. Only you can decide if this is worth it!
Best of luck with this situation–
🙂