My H has in the past said some unkind things about my state of MH, and usually when he has been frustrated and lashed out at me. It became a pattern of behaviour at one point and it was very destructive - we were never like that before (I had better MH for many years), it was a bad phase in our relationship.

We had a lot of serious talks around this time and he changed his behaviour. I would urge others who feel their partner is adding to their stress in this way to talk it through with them and explain how hurtful it is to be disrespected. If they care they will listen.