You can be the moon and still be jealous of the stars.
Gary Allan

People are taken aback by a confident, pretty girl who knows what she wants in life and isn't going to let anyone get in her way. And you know what it's all about? Jealousy.
Summer Altice

As iron is eaten away by rust, so the envious are consumed by their own passion.
Antisthenes

There is no greater glory than love, nor any greater punishment than jealousy.
Lope de Vega

He that is jealous is not in love.
Saint Augustine