undecided

I have been dating this man for 2 years he has two kids from a previous relationship and I have one so it works out fine for the past couple of months we have been going to family trips with his family camping etc, during those times he's mostly with his family and making little comments that put me down I let it go now ever since we came back from camping I have distance myself from him, I'm not going to tell him spend time with me it should come from him and we have had numerous arguments about it and I just got tired of bringing it up we haven't had sex he never touches me or kisses me and I just don't feel the same way anymore. I just don't know how to say it to him HELP!