(((((((( leejones ))))))))))

Keeping the lines of communication open is crucial in this situation, have you told your spouse about your fear of depression effecting the marriage? I know it's a fear that I also deal with, I am always afraid that hubby is going to get tired of my depression and leave me. Talking to him about it has helped some.
Also are you in therapy? Therapy can be very helpful for depression and most therapists will let you bring your spouse in for a few sessions to discuss how depression is effecting your marriage.