@BustyLaRoux Thank you, I really appreciate your answer. I haven't been able to talk to anybody about this and it's also difficult to explain to outsiders, so it feels therapeutic to have found these threads.
My partner's escalating OCD and his very rigid habits are really starting to take it's toll on me. He has a set schedule that he can't change when he gets home. It's A-B-C-D-E-F-G and he can't change the order or skip one thing, it can't just be done. I am just in the way and have adapted to his habits and timeline over the years and stay away not to disturb him. As a result we now eat dinner at nine, go to bed at midnight and I wake up sweaty with heartburn because it's too late for me, both dinner and bed time.
Same with weekends. He has a set list of things he needs to do and is mega stressed and irritated about "not getting any time to decompress". I am not included in the list and just have to be a bystander. We obviously don't have a sex life, since everything else is prioritised before that. He doesn't have any energy left and I don't want to feel like another chore on his long list of things that needs to be done before he finally can relax.
Looking back, our relationship feels like he has been the primadonna of the show and I have been the mousy and invisible wardrobe lady/personal assistant/emotional support animal who is there to take care of him, while not having a life of my own. My health and very limited amounts of energy hasn't exactly helped.
I need to change that. I need to carve out a life of my own, even if we are still living together, find my own way and voice and get my affairs in order so I can leave next year.
If you or anybody else has some advice about coping in a difficult situation, or how to get my life back, I would love to hear.