It sounds as if music has become a solitary occupation .... eg performance at the coffee house ......and therefore something of a chore .
Is this how music used to be when you had a partner. did she used to comer along and support you when you played?

Do you need to find a new venue or session where you are joining with other musicians and really having fun?

Do you need to get away to a festival????

Do you need to try playing a new instrument????

I get depressed at times as well but, fortunately for me, that seems to be the time when I write most of my songs.

Hope this is only a temporary faze and that life will sort itself out in a positive way for you.

All the best
Hazel