Why is love so much pain?

ok so i have a crush on a boy but like every time i want to just chill with him some other girl is with him. he just looks at me and smiles so i walk away and go sit. then his best friend comes over and say hi cutie i go like what then he say why so lonely?. i go no am just thinking then he goes of me right^_^ lol am like ugh then he say jk :) then the boy i have a crash on comes over and just say hi with a smile :) i say hi back and look at him ans smile. then he just walks way like WTF cant he tell that i like him. like why dose love have to be so much pain :'( his friend just say there with me and try to make me smile but i just cant caz i really like the boy i have a crash on:(