Advice needed. A bit of background story. Met my OH about 15 years ago, when I met him, he told me that his wife left him and that he has 2 children, one was from previous relationship and the 2 mutual. We had lovely relationship for first few years, I am immunocompromised and have been for the last 15 years so there has been times when I have been ill, at the beginning he was very supportive and understanding, no such luck now all he says when I say "I am not feeling well" his answer is "you are always fucking ill", I do have some PTSD issues as well as I have been through some horrendous stuff, anyway while we lived on our own life was good, then his ex said she cannot leave with they child anymore as they don't get on, they daughter was 16 at the time,so he made a decision that she will be leaving with us. I have always made an effort to get on with her but I think she resented me from the start. She has asked him if he would ever get back with her mum in front of me!!! Anyway there has been animosity since she started leaving with us because she doesn't do anything around the house and it pisses me off big time so I tell him and his answer is always the same- "I'll do it no problem" . Fast forward another 5 years and since last October she hasn't been to work and I only found out recently that she stopped giving him the money towards the house, where is I am expected to give the agreed amount no matter,if I am on the sick or not. Now a few days before the lockdown I was told by my doctor that I need to be shieldied for 12 weeks, so I have no choice but to stay in,she was at her boyfriend's at the time and was going to come over with him, I said no so he phoned her and said no, she was screaming and saying it's all my fault, so you can imagine the atmosphere when she got back from his few days later, tomorrow will be 3 weeks since she has seen bf so it's a living nightmare from day one. What do I do as I dont want to end the relationship as I care for him but i no longer can live like that, I cannot say anything to her as there would be blazing argument and he would literally bite my head off I would to upset her. Today was classic she made food for both of them didn't even bother to ask me if I would like some. I feel like I am losing the plot here. And if I say anything all he says is please make an effort, I have been making and effort for the last 15 years how much more of an effort can I make.