At first I was going to say your troubles sounded just like mine with my first child...I thought hmm theres a connection between "new husbands" and "new baby" "new life"...tho your husband seems to be stuck in his funk a little more.
How are things with his job?
I remember when my husband went thru this same thing, he came around to tell me that all these new responsibilities and his new job and our new house and everything that came with that really wore him out physically.
A year is a really long time to go with out any kind of affection
Does he do email's very well?
When I finally got fed up with the lack of love in my newly wed relationship I emailed my husband since he would do the same as your husband, burst out of the room mad that i brought up the relationship and sex topic...
I told him EVERYTHING I was feeling.
I think it took him a few months after that email when he finally started to come around. Thats when he told me that he was just overwhelmed with all this newness.
Could it be that your husband is just trying to get use to all this "new" stuff.
Does he seem depressed?
Maybe you could make him an appointment with a family doctor to get things checked out--would he go for it?
Maybe your husband if hes willing, get checked out or if he needs something to make him feel better--a boost. Not that I would want to encourage medicated happiness.
It's really frustrating tho--I've said to my own husband during our dry spell that we were like "roommates" too and told him its got to be obvious to him that this isnt normal--husband and wife dont, NOT hold each other or be there for each other.
Tell him that you sense that he needs to be cuddled and you want to make him feel better like you did back in the day at your flat. Maybe memories of 'the old days' would help him go to that happy place again with you.