What would happen if i ran away?

okay so recently i got back together with myy ex of nine months and my parents aren't really too fond of him so now they threaten that if things dont change with him that they will break us up. im truly in love with this guy and i dont ever want to lose him again. but my parents are realyy strict and hardly let us talk on the phone let alone hang out as much as me and him would like to. so ive had thoughts about running away but im just a little worried about legal consequences. im only 14 so how much trouble would i really get into with the law. plus my step dad, whom i live with, is a state trooper. so any help? it would be greatly appreciated!! =)