How do you know if a boy likes you in 5th grade?

I know I'm a little under the age limit, so don't answer if all you're gonna say is "YOU'RE NOT ALLOWED ON THIS WEBSITE!!!!!!!!". There's this boy in the other cl who has a facebook (as do I). One night, at 9 o'clock I was on and so was he. We were chatting and I told him I didn't want to date until I was 16 and how annoying it is when 5th graders date. He then asked where I'm going to high school. I don't know if he asked that because if we went to the same high school, then he could ask me out or what. He also said that I'm actually really cool. Last year, he asked me out at recess in front of my two friends. I said no. I don't know if he has held onto those feelings for me, or if I like him back. I try to not like him, because I already like two other boys, but I know that you can't stop a crush. Help? Thanks!