I've been having strong feelings for my best friend. But we have been together before and he didn't think it would work, we are so close but I don't want to ruin our friendship although I can't help my feelings
PLEASE HELP ME!
What should I do??

If you were together before and it didn't work then leave it be. You need to put value on your friendship. If you still have a great friendship after a failed romantic relationship then don't cross that bridge twice. It might not end the same way.

But I'm only 12 :L thanks though :

If you only 12 then what does "you have been together before" mean?

Just because you really like each other, doesn't mean being boyfriend, and girl friend, will work, especially since it didn't work before so stay friends and don't get carried away by your strong feelings because at 12, you may not be ready for such a difference in a relationship, so keep it friends.

At your age, its not much difference any way. , just a silly title.

I have a boyfriend but he doesn't like me like that anymore , and he likes someone else and so do I, but I'm not sure if my crush would say yes we are really good friends though what should I do??

How old are both of you?

12 why

To young to know what love is all about, I would focus more on school for now if I were you. I know you don't like hearing that and I didn't when I was younger but I understand it now.

You are too young to date. Forget about dating until you're at least sixteen.

You're way too young to think about boys! Why not focus on just being school friends and leave it at that? You'll have plenty of time for boyfriends when you get older.