"If she's jealous, don't get mad easily. Maybe it's just because she is too afraid to lose you"

Yes, indeed.

Because I don't wanna let anyone else take you from me.

I don't wanna let anyone else make you happier than me.

I don't wanna let anyone else get your attention more than me.

I don't wanna let anyone else take care of you except me.

I don't wanna let anyone else be the one for you except me.
I don't wanna let anyone else replace me.

Maybe, I'm too selfish.

But just so you know, that's because I love you so much.