Madly in love with him, but there's one little problem...well, BIG problem;\?

okay, so i have been madly in love with this guy for about 3 years now..he's only one grade ahead of me.i haven't told him that i like him yet...i'm planning on waiting till school starts again...but when i was set on that plan, he gets a girlfriend...she just graduated high school and he's only... show more okay, so i have been madly in love with this guy for about 3 years now..he's only one grade ahead of me.i haven't told him that i like him yet...i'm planning on waiting till school starts again...but when i was set on that plan, he gets a girlfriend...she just graduated high school and he's only going to b a sophmore this year. i know that he's not serious about her....i'm so confused and i love him, i can truly say that, i've never EVER felt this wayy about anybody before....just really really sucks..i don't know what to do...i don't like anybody else so moving on is not an option..
please help me!
should i wait till they break up
should i go ahead and tell him in school, even if they're still dating?
any other good options=]
thanks- i really appreciate it if u take the time to answer my question...
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