Am i in true love? or no?

my boyfriend of three months has given me a promise ring and hes only 16 i was taken away when he promised me he wouldnt hurt me or break my heart and that he promised to me in general. ive known him since i was in 6th grade and its been four years till we got together finally. he had his heart broken by my friend a year ago and he tell me every day that ive mended his broken heart.every time he says he loves me and he would kill to see me smile every day im breathless and i feel my heart pound like and african drum. i miss him every time im away from him longer than an hour. when im with him my lungs race for air for i cannot seem to find the words to explain why im like i am to him. am i in love?