Is there a way to get a second chance?

it seems like my life is falling apart. obviously it'll get better soon.
but there is this guy I like and I want a chance with him more than anything...
and since yesterday he didnt like me because of age.
I just cant realize and understand how you can...

almost fall in love with someone and then take a second thought and not like her (me) because of age..

I dont know what to do.
I know this isnt some stupid movie where you can win him back
I just dont know what to do..
I would do anything for a second chance.

but all of my friends say he could be a bad influence on me...
and they put him into a category of a bro
and I did at first but when I mentioned it... he didn't even consider himself one.

he was just different. from the guys I've expierienced before.
he never tried to do stuff with me or even shove his tongue down my throat haha.
we actually talked... and he was exactly what I was looking for.. personality and attitude wise.

I just need help..
please..

Your life is falling apart because of some guy? You dont have much of a life do you?
There are more than just one guy on this earth.

Well, maybe those feelings he had for you will one day come back when your older! (?)