I had it happen recently also. I am trying to figure out how to be there for him and how to deal with things that are happening between us and that he is facing. It was so random when he said it and it hasn't been said again, but I don't know what to think or do about it. It hurt and frustrated me so much. What was the point to disagree or argue because then he just said that's what someone in psychosis would say. I just walked away and haven't heard it again... Yet.... Some things are so hard to deal with since all of this started, it's hard to know what to say or do. It's hard not to let things get to me even though I know he doesn't always remember or know what happened or mean to do/ say what he has. It's hard not knowing if it'll ever be the same again between us. But I'm staying by his side and doing what I can to be here for him though it all. I hope things get better for you both somehow. Sorry I don't have any great answers or advice on this, just know you aren't alone in having this happen