mabrookes: So basically you are envious of what others have, and you are jealous about what might be taken from you.
ET3D: Tried to see if that's a British thing to interpret it that way, but it's still the third meaning in the Oxford dictionary, after the two I mentioned. "Fiercely protective of one’s rights or possessions" is how it's defined. The other meanings still come first, and obviously get more use, so I still wonder if it's a regional thing that you interpret the word that way, but I do agree that it's yet another possible interpretation of what the OP meant.
It is the exact difference you would learn in English not that long ago (~15 years ago)
Being jealous used to be used as a word completely different in its own right. But it seems this usage is not used anymore which is strange to think.
Edit: In the actual learners section of the Oxford Dictionary it gives them in a different order. I am surprised you couldnt find any mention of the way I was saying, I literally couldnt find in a quick search another source except the dictionary that doesnt state how I said it as being correct. So it was seemingly very widely accepted (internationally) even if apparently now wrong.