My husband and I have been open for almost two years now, and navigating it with the help of a marriage therapist. It was rocky at first but now is going very well. He's wonderful and I love him so much and we're both working hard to make non-monogamy work for us and keep our marriage strong. But there is still one thing that troubles me. I will absolutely bring it up with him and our therapist, but our next counseling session is a few weeks away. So I thought maybe I'd get a little guidance or at least sanity checking by discussing here.

I'm an optimist by nature and I mention this because I think this is the root of the "conflict". He's pessimistic by nature (although he denies that - are there any pessimists who admit it?). Our therapist has taught us that we can't manage each other's emotions and we've learned that well and no longer expect or try to do that. But what we have now is that there is still an emotional struggle when one of us is having a bad time and the other person picks up on it and starts also feeling emotionally shitty. When you live together, how can you NOT affect each other (rhetorical question)? In other words, even without feeling compelled to manage his emotions, I'm aware of them and they tend to affect MY emotions.

Here's a specific example: he was recently involved in conflict in our social circle that ended up with one person being "cast out". He feels shitty about it, as do many people in our social circle because that person was very much liked and loved by more than a few. I liked him too, and am bummed that it happened. He feels even worse and shared with me that he thinks he needs to find a lawyer in case that person sues him. Absolutely worst case scenario thinking - if not catastrophic thinking - which is his habit. The odds of this happening (for valid reasons I won't reveal here so as to not overshare) is extremely remote.

Okay, this type of thing has come up in our counseling sessions in the past and he communicated that what he's doing is 1) sharing his feelings and 2) communicating all of his concerns, both bad and not-so-bad. But from my perspective he's only sharing the worst case scenario. I am happy to support him and give him sympathy for his feelings, but I feel like him doing this is bringing me drama, shitting on my day. And then my emotional reaction is to feel annoyed and angry at him - my emotions to deal with/sit with. But I don't like sitting with negative emotions that (in my opinion) aren't necessary because the odds of that worst cast scenario happening are really super remote. And I also do not like feeling angry with him when he's already having his own emotional issue, not to mention I feel like now I'm angry/annoyed at him for really stupid reasons (him saying something that's extremely unlikely to happen).

How can I brush this kind of thing off, if I even should?