How can I get my mom back?

hey! im kinda stuck here on what to do you see my mom has this new boyfriend (my dad lives in texas on his own well with my older brother) and I live in wisconsin with my mom and I get on with my mom really well,sure id even go as far as calling her one of my best friends! but ever since erick my moms boyfriend moved in she doesnt have time for me any more and I was thinking about moving in with my dad because I miss him loads but I dont want to have to lose all my friends espically my boyfreind! I said this to my mom and she simply said do what you want I dont care your 18 soon anyway you can go go on go! and im crying the whole time because I love my mom and my home and where I live and I wouldnt mind living with my dad either just if I could live with him in wisconsin! but then I honestly would perfer to live with my mom because I've lived with her all my life (my parents split up when I was 4) and I miss my mom I want her back! please help! xxx

you should sit down when your moms boyfriend is not around and tell her what you think and since you 18 you could make new friends werever you move girl its not hard