So here's the deal. Exlax cures all. Its really easy if he drinks protein shakes, because you can shve the chocolate pieces and he'll never notice. But if not. Use eyedrops. When people are sick to their stomachs and running to the bathroom every five seconds they get very irritable. Which causes fights. Which helped me get rid of my mothers second husband. I also did other things, but this one will get him good.
Make your mom's boyfriend really mad and make him go off on you. Then your mom will get mad at him.
Just tell her that he touches you in some ways and threatened you if you told your mom. Then when your mom finds out, of course she wont believe you but then make a scene saying 'how would you belive him and not me. I'm your daughter!' that should work. Trust me. Its helped me with my mom's 3 boyfriends.
My mom puts him out and let him back in the house
If you mother is happy be happy for her. Who knows the boyfriend could become your step dad and if you have been horrible to him think of the consequences.
My moms boyfrend dos not like me or my sister whin he met my mom he met my mom he promist her anice ring and a now carand he wude tack her on a big cruze thin he sede he wide tack oll of us on a cruz to he lide to me and my sister and my mom sise he mete my mom my life haze ben a living hell oll my moms frends say hes gay since my mom mete shes terd her back on me and my sister