I'm sorry you have reason to be here.
What did you do to heal from the past infidelity? What work did he do to make himself a safe partner? To ensure he would not make the same destructive choices again?
An affair last year is remarkably fresh; it's unusual for a remorseful spouse who really GETS what he did to behave the way your husband is now behaving.
To me, it sounds as though the affair went underground. That it never ended, and that now that he's feeling that you're far enough out, he's getting bolder (and in deeper). His actions---the lack of connection, in particular, are really, really worrisome.
Please, stop asking him whether he is happy. He's not concerned with YOUR happiness and well-being.
Instead, consider your options--all of them. You have a husband who cheats. At very best, he is not willing to do what he needs to do to repair the damage he's done. At worst, he's in his affair still, or in another.
Is this okay with you? If not, you have some tough decisions to make. No, you don't have to make them today. But you have to decide whether this is a man with whom real reconciliation is possible.
Not all are. And because I had one of them, I know how much it hurts.
Millions of hugs to you.
ETA: I'd read, in the FAQs for BSs (in the healing library, located in the yellow box to the left), #1, which discusses the 180. This describes one very helpful method to give you enough emotional distance to really start seeing things more clearly in order to make wise decisions. Among its recommendations will be that you no longer ask your husband whether he is happy. Fuck his cake-eating happiness. He does not care about your happiness now. You need to.
[This message edited by solus sto at 12:18 PM, July 19th (Friday)]