ERP exercises for Partner focused OCD?

Been struggling with existential OCD lately. Very hard to describe the thoughts/feelings, but it is a constant feeling of being stuck in my head. Like what is consciousness and where do I think from? Like I think it’s OCD, maybe it is maybe it isn’t. But if it is, what would be good ERP exercises? Just existing (lol)? And what would be my response prevention? I’m not even sure what mental compulsions I may be doing.

One problem - Various themes This is my first post. I had a relapse a few months ago. Life was amazing and then boom, I got triggered by something and started spiralling about my sexuality (having finally been at peace for two years, entered a healthy new relationship and come out of the closet as an older women). How do you, when you're not triggered practice ERP? I'm able to try and accept the thoughts every time I see a man. What should I be doing when I don't encounter these triggers. I was to say as well that I also am starting to get real event OCD about some of the sexual things I did in the past when I was married and in an unhealthy toxic relationship with my ex husband. I am shamed and disgusted and I'm working on it but there's a certain subsection of the LGBTQ community that trigger these thoughts, groinals and thing for me... I feel like I'm beginning to realise I need to maybe be a little more active in my recovery instead of waiting for triggers... But I don't know how

I am at a very difficult spot in my relationship. My boyfriend and I have been together for 6 years, and I have a history of cheating that for years we’ve been trying to work through. To me, it makes a lot of sense that my OCD has attached itself to this and for the last few years I’ve experienced intrusive sexual thoughts of others and relationship ocd. I have been open to him about the content of my thoughts and now, with a proper diagnosis of an anxiety disorder, I am able to reframe them and work through them with ERP so that my brain will *hopefully* get bored and stop sending them. But, things have not been easy. As a result of this and everything in our past, he has become anxious about all the scenarios where I could be having sexualized thoughts about other people. To him, if I am thinking something utterly different than what I am telling him or acting like to him, he can’t fully trust it. And of course, I can imagine how difficult it is to know your life partner is sexualizing others in her brain and to be able find a way to dismiss them as unthreatening, especially when past mistakes say otherwise. Is there anyone that has gone through this with a partner? And other than repeatedly explaining the egodystonic nature of my thoughts and providing reassurance, what are some things you did that helped them? Any advice helps! Thank you