My DF has always had quite severe depression and anxiety, and when he's having a bad day/week he finds everyday things overwhelming. I'm in my 20s, and have 2 younger siblings who both have autism. In addition, my DF's elderly parents are both struggling with their health lately (they're in their 80s) so they need support too. All in all it's a lot of stress for him to deal with. My DM works long hours, my DF hasn't worked in decades due to his mental health.
I try and help out as much as I can. However, I ended up feeling quite upset yesterday after my DF told me that he has nothing in his life and nothing he's proud of, and as soon as his elderly parents pass away and he gets his inheritance he's moving away for good. I challenged him on this and said so you will leave and won't ever see any of your children again? and he said yes. I've had conversations like this with him before, even when I was a child.
I never know what to say, and afterwards he sort of forgets he said something so hurtful and just changes the subject. Should I just forget he says things like that despite it being really upsetting. My siblings would be devastated to hear him speak like that.