I need advise!

I need some advice, my boyfriend and I have been dating for two years and a few months, the last time we had sex was a week and a half ago, since then he doesn't kiss/hug me until we say goodbye and get dropped off. He hasn't tried touching me(sexually), I asked him about it and he said he hasn't touched me bc we haven't been alone lately but we have a lot of times,  and he also said I don't kiss him either, I work with him so I talk to him good but I show him that I'm not happy with him not telling me the real reason,  idk what else to do bc he hasn't tried to make me feel better or talk it out, help pls?