I need help!?!?!?

thing is, im in love with my boyfriend, we love each other,even though we've a really tuff relationship cuz is LDR, and he once did me wrong, he said it was bec he was confused but he apoligized millions of times,at the end i forgave him,i am 18 yrs old and his 19, we wanna get married, hes a pretty wealthy guy, not that hes rich, but he has a nice apt and a job. thing is, im living in PR bec of college school, and he is living in Florida, he wants me to go over there to get married and then both will return back to my home land, but my family and his family has nvr meet before, and my mom has nvr seen him cuz i kno she wont let me got out and stuff, but she knows about him, i've talk to her about him. please ppl help me,how do i tell my mom, that im in love with my boyfriend and that im soon-to-be engaged to my boyfriend!? and that we wanna move in together back in Fl ?!or should i just leave one day and nvr come back!? please, i need ur help, or ur opinion!? it will help alot, thanks