I it's think that you might want to heLP yourself with regard to the depression. Just to be honest I hear a lot of justifying your choices and behaving as if there is nothing that can be done. In actuality there are man y things you might consider if your depression is effecting the quality of your relationship in this dramatic of a way. What we depressed sometimes forget is that out partners may not be depressed and so it is often times as hard on them. If your unable to enjoy some of these relationship activities then I strongly encourage you to seek professional help. Many people are forced to call things off for things that could have been improved by a frank concerted effort to work on ones health. Can you get to a therapist ? Low libidi can be a problem, but low libido and no loving mate would only add to the pain I would imagine.
God Bless,
Healing
JB