Answer: It depends at what level.
If this is animalistic jealousy when you are jealous of one person’s attention to another and feel that the other is taking away the attention of the object of your interest that you want to be directed at you, that is one thing. This is the jealousy of our world and we must somehow work with it.
However, it is better if you start working on attaining the Creator and this will obscure everything else. Then you will not have any problems with jealousy or anything else because working with the Creator, when you are yearning for Him and He begins His manipulations, wishing to attract you to Him is much more intense in feelings, in depth, and in possibilities than any other earthly sensations.
From KabTV’s “Fundamentals of Kabbalah,” 4/26/20