Samandtola: I find the 'drive' ebbs and flows dependant upon what mood he is currently experiencing. If he's depressed, well, forget it! If he is stable, life is great, and if he is manic, life is great! Is this what you have found, or is this a permanent problem? Could be that the arrival of a child has helped exasperate this issue. Some men can find it hard to view their partners as lovers, once they become mothers. My brother is not bipolar, but did experience this issue with his wife when she had their first child. It took him awhile to equate the Mother (his wife), with the person who had been his lover.
Just a thought. Could be completely wrong
I suppose it depends if this is a recent change, permanent, or ebbs and flows. If it is permanent, and has been for a while, then Kym and Samandtola, how on earth do you cope? Kudos to you both for standing by them. I have issues with self esteem, and a permanent situation like that would be emotionally crippling for me.
TTFN