I saw only the title of your thread and my first thought was: sheer stubborness.
Just for info, sex can be a substitute for many things. It can be a result of anxiety. Relieve my anxiety. It can be a substitute for love. It can be a substitute for identity. It can be another addiction. it might be for reassurance.
I quit playing tricks several years ago. The only reason I enjoy sex now is for connection, intimacy and love. If it isn't meaningful, I am not interested.
I used to think it was a sport. I missed the personal connection completely. I think that is pretty common in our society.
But, I digress. I would bet you my last dollar the problem isn't sex. That is a symptom.
And with that, I leave you to come back to the experience, strength, hope and wisdom of the many that are here.
hugs,
live