Why does my ex girlfriend still get jealous of me liking other girls?

[Chelsey]

listen, here is my story:
I was riding shot-gun with my hair undone in the front seat of his car. He had a one hand feel on the steering wheel, the other on my heart. I looked around turned the radio down and he said "baby is something wrong?" I said "nothing, I was just thinking how we dont have a song!." And he said, "Our song is the slamming screen door, sneaking out late tapping on your window, when were on the hpne and you talk reaaaaaal slow, because it is late and your mama dont know. Our song is the way you laugh the first date man, I didnt kiss her and I should have." But when i got home before I said Amen asking G-d if He could play it again.
Hope this helped!