Camacho has good advice. In your circumstances I'd try to do things that weren't touch-related; I buy my husband cards and little "gifts" (fix his favorite foods, buy "his" candybar or other snack when I'm at the store for something else, when I see something silly or interesting I think he'd like seeing I get it, etc.).

It might help you to say "loving" things in odd places? My husband was getting annoyed because I was talking nonstop :-) when we were at the ATM machine and he was doing a complicate transaction and asked me to be quiet unless it was "important." I waited a bit then said, "I have something important to say" and he finished what he was doing and asked me what it was and I said, "I love you" :-) Now we both laugh and he asks can he take me to the ATM machine and I try to remember to tell him I love him whenever we go :-) Try to make "special" events like that that are easier for you because they don't have as much pressure/aren't expected.