Re: Envy or Jealousy?
Perhaps this is another way to think of it.
You may be envious of what others have, wishing you had it for yourself. I confess to feeling a bit envious when I meet people who can eat whatever they want and not get fat, and when I hear about a fabulous vacation. It doesn't mean I want to steal it away from them or that they don't deserve them - I just think it would be nice to experience those things for me.
You are jealous when you feel you deserve to have those things, that they should belong to you, that it's wrong for others to have them (when you do not), or that someone is about to take it from you unfairly.
As you can see, I find jealousy to be "worse."
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.