it's a tricky situation my friend. I understand what you feel but i'm confused about her. If she loves you like why does she wants to marry with the other guy ? It's hard to believe that a person can love to persons at the same way. i say "marry" but you didn't tell us if she intends to accept. You also say it's long way before you get out of school and college, she may change her mind. You're happy about her, because she'll be happy even without you, thats proves that you really love her, like i said the other day, quoting B.Adams "give her wings when she wants to fly"