Hi @Bindy17 and welcome to the forums.
I am in a somewhat similar position in that my husband has isolated himself into an eating disordered daily regimen that takes up most of the day. It has caused a completely different presentation of his personality than the way we knew him before this happened, so it’s likely driven by a personality disorder, but rather than understanding that he is unwell, he thinks he is living a superior lifestyle.
As with @Former-Member and @perseverer , I have come to accept that my relationship with him can’t be what it was before. It took me a while to understand that I have become his carer, because that is what it is to live with a spouse or partner with mi, and I believe it will be easier when / if he is ever diagnosed because that would validate and clarify what has happened ..... but as you know yourself, it isn’t any kind of magical solution.
As @Former-Member and @perseverer have said, the relationships are changed, but can still be “doable” with their own moments of joy. That seems to come with two things - accepting the limitations, and finding your own life within this new life.
What does that look like ?
For me it meant no longer trying to rely on my marriage for emotional fulfilment. I believe some of that can return with a diagnosis as we can then start to row together again. At the moment I have had to accept rowing my own boat by leaning on friends and other family members for support, engaging a counsellor to help me deal with my new reality, taking on studies to give me a new focus outside the relationship and the home, and doing things far more independently, by myself or with our kids, and letting him be the satellite that his condition dictates to him to be. I find companionship elsewhere now.
Within this new status quo we can still have fsmily occasions, still travel together, still share and maintain a household, but we need to make room for the condition that lives with us. It felt like enabling at first, but while we can’t do anything about it, and the most telling symptoms are hidden, counselling has helped me learn how to carry on regardless.
Sometimes medications can suppress socialisation and personality. Can you suggest attending some of the time in your husbanf’s next psych appointment to broach a conversation about that, and see whether medication adjustments might help too ?
Above all else, it’s not selfish you put your needs and the needs of your son first. To survive as a carer, you need to be a carer to yourself as well. You are just as important as anyone else in the family and your needs matter too. Increase your self-care in any way to can. For me it meant getting my problem nails and hair seen to more often, and when I am feeling tense, I get a neck and shoulder massage. Would having perhaps fortnightly cleaning help with the house make a difference for you ? Think about what else can be shared out ....
Here and listening, and hoping some of this is helpful to you.