Need to know why written by Carl Reneman w/lyrics

Need to know why written by Carl Reneman just the other day.i walked in to find you with this other guy . my heart sank and I knew you were no longer mine..I remember you telling me lies of wanting to be with me .later I sat down and cried.i am loseing my mind what did I do to make you feel you did not deserve me. baby I treated you right I gave you my heart. why did you do this to me . I wanted to be your guy why did you hurt me so bad. come on girl I need to know why. you were all I ever wanted. you were my heart and soul. but now looking back I can see I was just a fool that was in love with you you never wanted me ..I feel so used ..I am sure you told your friends things that made you look good. you and I are no longer meant to be. I am through I am walking out on you. good bye I am totally over you . I am over you