Okay, Welcome and all that.
This situation of yours is just another one of life's many test that we all have to endure at one point. In my personnal God-less opinion (Except Odin), It seems that this is just one small Karma fart!
Everything is going smoothly for you until one thing kicks you in the knackers! Then it all SEEMS to go to crap but the trick is to continue with your lessons, keep that GPA at it's best, and if after she's sees how successful you've become still doesn't want to know you, move ahead and lead your life like you've always wanted to.
Your purpose will come soon enough, I may only be 19 myself, but I have had as much experience with the world than any man triple my age!
I have no idea if any of this is helping but keep it in mind that one dame may steal your heart and rip it apart, but in the end, she will see who was wrong in the end.
Maybe a little bit of booze might help you overcome it too, or it will make you into a wreck!