Answer:
Oh wow, well your in quite the predicament here Thailor, wish I could help you truly I do. But um I don't believe that they can make you come back, since your of legal age and have your own free will they actually can't make you do anything. Your parents no longer have legal control over you since your 18 therefore you can live as a normal adult.
Explanation:
That's all I have on this for now though.