Porn addiction ruined perfect relationship

Hello everyone, I just wanted to share my story and see if anyone has been through similar. I've been dating this woman for over 4 years and we are mostly perfect for each other and have wanted to get married except for one thing, the porn. It's been a problem multiple times in our relationship with me saying I'll quit and not, it affecting our sex life, destroying her confidence and trust in me as well as her sex drive.

At some point we have tried almost everything except my dumb ass would go back and watch porn at some point later despite seeing how badly it destroyed her previously because I just thought everything was good again between us so it was ok sometimes.

She left me briefly previously but since I've been talking to therapists on here with more scheduled in person and I havent watched in two months and we've been great. She randomly decides that she can't deal with the emotional stress and fact that she doesn't believe I'll stop and breaks up with me.

We share a house, two pups we both love so much, I had a ring, and envisioned my entire life around this woman and now I'm so terrified that I don't know what will happen. I don't know what to do if she moves out and barely talks to me, how do I prove to her and have a chance to win her back? She says she isn't interested in anyone else just herself. Thanks for listening!