First I'd like to congratulate you on having H home. But remember you're still in the DB mode. You can't stop just coz he came home. You probably still have issues to resolve.
As for the conflict, I'm not sure. My H and I really didn't have any conflict either except for petty things like how I didn't like the way he folded laundry or whatever. Now think...does he spend a lot, too thrifty, stay up too late, drink a bit excessively on occasion, watch too much sports? There's probably something there you just have to dig a little deeper and think about it.
So, I take it you've been to retrouvaille. Was it recent? I've thought about it but since we are S, I didn't think it would have the same impact on us as someone who is "thinking" about it.
As for the plane tickets, goes back to my comment above that you are still DBing. Why not check out the info and get the data about the tickets and then propose to H that you have the price and dates at X and he has X # of days to get back to you so you can "close the deal". Then, order the tickets w/or w/out him. Hey, it's not really like it's his decision to stop you. And you have to respect his decision to stay home. So, he has issues w/your family, (seems like a conflict here), there's no reason to force it. As you have learned, you need to let WAS figure some of this out on his own. If he feels intimidated, he could always change the subject or become educated on a specific topic to feel more intellectual. I can understand his position but again it's that unconditional love thing to me. Good luck........