Sexual intimacy including the things Troy mentioned in his comment would go a long way toward making me feel loved. My wife does a great job keeping the house and fixing meals but the near total absence of sexual intimacy for most of our now 36 years of marriage is a huge trial.
sex alone isnt' the "binder" its intimacy, the kind words during the day, the random hugs, the soft words in bed... THIS is the glue for me. Sex absolutely helps because all these things are involved more often then not, but just sex alone won't do it.