Seven deadly Sins: Envy

What do you have there? Why don't I have one?

Now I don't like you. No more having fun

I see you got lucky. An ugly, green monster may arise

Careful what you wish for. Sinful things in your eyes

This may not be fair. Why should I care

Let this be a cat fight. I'll be pulling at you hair

call me the sixth sin. But not the last

Seventh is next. Coming in fast