Is it a relationship without sex?

Is it a relationship if there is no sex? My boyfriend who I live with has no interest in sex, kissing or touching me. I have talked to him about it and he says he just has no interest in it. I have recently started a new job and feel more connection to one of the guys at work than my boyfriend. Really confused xx

May I ask your age, and how long you've been together? Is this a drastic change, or has it always been this way?