For me, when stuff starts to get tense at home, I have to connect with my husband. And I think you have learned from your T how to have this discussion? You can use your skills to work on this - your T has embedded knowledge in you and you can use the T's embedded help to do this, even if you don't get his response today.

So, maybe not muscle through, but gently sweep away?
Sit quietly, talk quietly, listen without fear or reactions or judgment.
With my H, this happens if I have taken on too much and I'm feeling resentful of his hours relaxin' on the laptop. If he is worn out by endless dishes. Sometimes he just wants some lovin' attention - my self-focus means he's not getting so much of it.

Sometimes it just helps to bring it out in the open that something isn't right, we are off balance. Even if we cannot resolve it right away, at least we can agree that something is "off". A first step?