When only hearing a word makes you come back to your personal hell💀

My boyfriend keeps triggering my intrusive thoughts on purpose to mess with me. I've explained how bad they are to him before but i guess he just doesn't get it. He finds it funny when I have such a visceral reaction to him reminding me of them. I hope it doesn't sound too silly but body horror really freaks me out and this one image haunts me so bad when I remember it and he knows that, I trusted him with that knowledge but he loves to just yell out what it is to mess with my head. Now it'll flow in and out of my head for days and I'm gonna have trouble sleeping tonight. Usually distraction works but this one is particularly strong. Does anyone have any good coping skills or tips for going to sleep when it keeps haunting you?

Just bombarded with the guilt of past mistakes. Not knowing the outcome of things makes it worse. Seeing things/signs that are associated with the real event I obsess about everyday. I see it in tv, you tube, songs and everything. It's so scary how it's everywhere

even a word, or if I read a word that describes an intimate organ is a trigger for my thoughts (images), it even gives me groin..how many more of this😑!?!?