Yikes. Sounds like a very sticky situation. Obviously, all of us here at Families doesn't know the exact situation and only you will ever know it, but from what you describe, I would hold off on moving any further with this man. His heart may be in the right place, but his actions don't really match the words, ya know? (Of course you know. That's why you're here, right??

) His delaying the divorce (even though it is unintentional) don't exactly scream Commitment to you.
Anyway, I hope things work themselves out for you! You two have been together long enough and seem to have a solid enough relationship where maybe it would be beneficial to you to speak up. It seems like communication on how you feel about his situation is being neglected. Hope to hear from you soon with good news!