Idk what to do

Sometimes I have this gut feeling that my boyfriend doesn’t love me. And I ask him questions all the time or complain because he doesn’t show me enough affection.. and sometimes I come off as being a negative Nancy.. I feel like affection should come as natural as a bless you when somebody sneezes. But he thinks that I be in my head and that everything is ok..

This is making me not want to have sex with him. Maybe he wants to be cool with me but don’t want to see me with anybody else.. idk