I'm so sorry you're having to go through this. I feel this way with my DSO also. Always trying to be in a good mood because if I'm in a bad one or say something negative she goes way too far with it - like I'm putting gas on her depression fire.

You've set a boundary with the therapist - try to tick to your boundary. His suicide thoughts are not your responsibility.

I asked my DSO to go to a therapist and after 3 visits notes that it's really not helping and she's not getting much out of it as all she's told her is that we're having issues and she wants to keep the relationship together |

I asked if she told her that she's been depressed for about 10 years and she said no that her therapist and her believe ths issue is only how I'm feeling. So I think I'm about where you are - depressed, scared, tired, angry and well - just - about - done.