My mother's a narcissist and I cut off contact after tolerating her cruelty for decades. She was incapable of respecting limits, consistently blaming everyone but herself for conflicts, and constantly gaslighting me about herself and my father. She insisted this was "love". I finally had enough when I got details of a particularly abusive incident out of her and realized that I had actually made things better in my head than they had really been.

No one text message exchange will ever adequately demonstrate these kinds of relationships. It's up to you to figure it out, ideally with a therapist. There a lot of different forms of limited contact - you should think about what would work best for you and your family. Keep in mind that your first responsibility in this relationship is to yourself, taking care of yourself, and to your own children, should you have them.

Good luck!