Like a guy but have a bf wat to do?

ok i have liked this guy for 2 years. he has showed the bf/gf signs for like foreva. like holdin my hand and kissin me on the cheek. well we stopped bein frens for a little then became frens again and the same thing happened with the gf/bf things. now the probs. he is 3 grades above me, i have a bf and he has a gf and before we bacame frens again he told me that he didnt want me to think he liked me. wat to do?=/