the angle and the demon

hi I am alex and I am an demon but I am nice and caring so no one like me .I ran away from a place of evil and darkness (hell) that when I meet her. Alisa she is a angle with beautiful fire blue angle wings.she was sent to kill me but she didn't because she saw me help a bird with a broken wing. I fell in love with her that instantly when I saw her .now we are good friends but I don't know how to tell her that I love her . then out of nowhere this human girl come and I love her to i don't know what to do. you like it so far than read the book . which one will he chose to love and how will he tells her how he feels?