Hi sadtech and welcome . I must admit being the depressed one that I too can be hard to live with at times. Sometimes, there's just no pleasing me . I know that at times I just lash out at my husband not on purpose but just because I don't care about anything at the time. You know the old saying "misery loves company".
Do you two communicate well? Could you sit down and tell her that you know she is hurting but that gives her no right to hurt you. Let her know you're there to help her. Is she in counselling? Maybe could I recommend couples counselling so you both can support each other. Are the new meds helping?
You sound like a very supportive spouse Sadtech. Please take care of yourself during this time also.