He shouldn't need constant attention, but he has a right to a daily dose of some kind of attention. I don't think we can use a psych diagnosis as an excuse to be irritable and withdrawn. Do you work? If so, does your behavior at work change as you cycle through moods? Maybe you need some counseling to learn to manage your illness.

Whether your maintaining a marriage, or a job, you can't take the attitude that: "I'll be emotionally present for my husband, when I feel up to it." I don't mean to sound harsh, but that's what I hear when people say they need space. Maybe I'm hearing that wrong. To me it kind of sounds like "Leave me alone."

It sounds like you wouldn't mind all that much being out of this marriage.