Ahhhhhhhhhhh!!!!!!!!!!!!!!!!!!… PLEASE ANSWER?!?!?!?!?!!?!?

Ok, so I really really really really really like this guy, and I'm only in 4th grade I wonder if he likes me. Ok, he always like, kinda flirts with me, and whenever we read or something, I can see him staring at me. And yesterday, we were at our baseball party, and I was sitting in a chair and he came by and sat by me because I was alone. And there IS a rumor that he likes me.. he's really cute and nice to me. He always pays attention to me and congratulates me with a lot of stuff.. like if i get a good hit in baseball he with give me a high five.. I have NEVER complimented him because I am way to scared he will expect something. Please answer!! Does he like me? Should I tell him I like him!?!?!? Oh ya, and he sometimes teases me playfully. Hehehehe!!