, from what I have seen, uses to mark the thing/person which is envied. For instance:
> () I envy you so much.
So, assuming is good for your context (see below...), I think your sentence would be better rephrased as:
> )
I would also consider about including an to strengthen the “togetherness” of those people’s actions, after the , but it is not necessary.
However, depending on the sort of jealousy, (and just sticking to -adjectives for simple comparison), a sentence using () might be better. conveys an essentially a neutral/positive jealousy; while conveys more negative sentiment e.g. a sense of a hatred towards, and/or an inferiority complex due to that other person/thing. (See Difference between and , for example.)
A sentence using can use the same structure as the example above (i.e. ).
There are also unsurprisingly other ways to express jealousy (e.g. , , ), but those may be better saved for a question addressing those differences more specifically.