Moms boyfriend ( TOTAL WEIRDO)?

Okk so my mom is now dating this guy who doesnt have kids and doesnt know how to relate to me at all! they have known each other for like 8months and they have been just friends until about a week ago when they started going out. He is really weird, he orders me around but then clams he didnt. then he expects me to hang out with them and instead of being on the phone. Now al of a sudden hes doing things with my mom like personal family things and its annoying me. And he talked about building a family and im just sitting there like wtf?? you have known me a week. im 14 what do i do?