You are dealing with multiple traumas here.
In addition to the psychological abuse he raped you.
For me, being raped was like internal death. You didn't have control over your most intimate parts and you don't know who you are.
In place of your own thoughts and self esteem, destroyed by the rapes, he has put this poisonous dialogue in your head. It has stuck because there is nothing left to challenge it.
My Ex raped me repeatedly, and he never ejaculated either, except through his own hand. At one point we went for couples counselling and the counsellor took me aside and told me to run. She reasoned that his ejaculation issues were actually a control thing. He did not want to give me the power to make him vulnerable. This is what your ex did.
Once I was able to reason things out and fully understand what he was, I was able to recover.
You have had previously been in healthy relationships, so you know it was him that had the problem. He is the odd one out, not you. You don't go out in public and people run away screaming? No. He had the issue.
Men like him mean you harm not just you, anyone that they manage to trap. Even if he trapped a perfect bodied creature, he would do EXACTLY THE SAME THING. It was never about you. He is evil and he means to destroy you. Never ever give him the benefit of doubt, nor his vile dysfunctional voice in your head.
Your boobs work, they are fine, I promise. A wanker like that would never have let himself be seen with anyone who wasn't an 8 or above.