Find Out If He Likes Me Or Not

hi am ghazal. i like a guy who is shy in nature he lives in my apartment . my friends started teasing me and him without any reason that time he also involved in that he also tease me with them . we both become very good friends he always try to help me, he always tease me that time i start liking him .but suddenly now he start avoiding me even i ask him why he avoids me but he said its his nature.but some time we have eye contact for 2 and 3 secs then i or some time he turn around his face . now he avoid to talk to me but earlier he always talk with me very nicely . i think one of my friend told him that i like him . i just wanna know he has something for me in his heart or not.plz help me it hurts me a lot when he avoid me.