Paul doesn’t quite say this, but almost: it is impossible to be loving and envious at the same time. If you love someone, you will never resent—or even want—their success or happiness.
It’s often pointed out that Envy is the only deadly sin that’s no fun. The other deadly sins have some kind of reward. With Gluttony and Lust, there’s a pleasant dopamine kick. If you have Pride, you feel good about yourself. With Greed, you get lots of stuff. If you’re slothful, you get to sleep till noon. Even Anger can be satisfying, but Envy is never any fun.