I am afraid that this might be the inverse of hypomanic spending. If I were you, I would try to corral the stuff you do not like into a designated space, e.g. a pantry or attic, and go through it when you are past the current phase of irritable depression.

That, from a psychiatric point of view.

From a psychological point of view, it seems that your throwing away art objects that you yourself created is a manifestation of a conflict internal to your psyche.

But either way, do not throw anything else away yet - just take things off the walls if you do not like them and store them someplace, "out of sight, out of mind". Your H may be able to help you decide what to keep if he has a more stable outlook on life.