Partner Unsatisfied

I am so crushed right now and I’m looking for some solid advice, not judgment. My partner and I have been together for four months, we actually married weeks ago. From the first time we had sex until last night, he has expressed that he cannot feel anything when he’s inside me. He then says that images of my ex having sex with me and basically ruining me, replay through his mind and really mess him up. Honestly, I believe he is partly to blame too because he spent 6 years behind bars and had to masturbate so often. Even stroking or giving him head requires a lot more pressure than anyone I’ve ever been with before, and this is the first time any partner I’ve had has complained. He loves me very much, I don’t question that, and he doesn’t regret marrying me. Still, what he’s said has crushed me because who wants to be unsatisfying to their partner? I enjoy him, and I’m just heartbroken he doesn’t enjoy me. We’ve had sex about 2-3 times a week since we started doing it, and out of all

these times he’s brought this up maybe 5-6 times. Has anyone experienced anything similar or anything they did that helped?