Im 12 and my parents are getting divorced (help) =/?

well i knew this day would come ever since i found out my mom was cheating on my dad..my dad didnt know and i still havent told him and dont think i will till his heartache is a little calmed.well like my mom blames my dad the reason she is never home cus he made us kinda poor. but i still have verything i need / wanteed. its just my moms lame *** excuse for being away and not coming hoome 3-4 times a week .. she always said she was at her friends but really she was at a guys house named james(read emails.texts.so on) well after bout 1 year and a half my dad completely broke down and hes so heart broken but he still has his faith and hope.He wants me too live with him and i want to live with him. but my dad doesnt have much money but someday he mite if his invention / boat sells. thats wats been making us poor but i know god will pull through maybehh before everything crashes but it wont! anyways my moms got quite a bit of money will the court make me stay with her even if i really dont want to,,also i have a twin whos on the same page as me and an 8 yr old brother who my parents both love veryyyy much and i dont want to lose him and im afraid he mite have t live with my mom