Dump her and be done. Enough is enough.

We're not your mom, so we can't tell you what to do. But we can point out to you that this relationship is extremely toxic.

So, if you want to keep torturing yourself, then keep going.

But when you're ready to stop suffering, keep her out of your life.

Time to let this go and get your life back-as I wish points out this is a toxic relationship.
Leave her and fined your own happiness.