Hi Demoted. I seem some similarities in your situation and mine.
My H is unhappy in his job.He also has someone at work that he confides in and that person has had an unhappy relationship and has told my H that nothing changes so essentially he shouldn't trust me and proceed with ending our marriage! It is very frustrating.
You have the added stress of your Dad (I hope he is doing better and I love the "Not perfect on the cups, but after minor struggles with trying to put them together upside down he said, "Oh! Dumazz!!" & slapped them together in the right order"-it sounds like he has some spunk left in him!!).
Keep on working on yourself, that is what you can change at this point. It seems like you are doing well working on this already.