A succubus becoming “jealous” is more of a myth than anything else. However, if she’s working with your chakras or with other things involving your ascension, I wouldn’t recommend to evoke other spirits at that time. I shouldn’t have to explain the reasons why, right?
We also tend to throw the word “jealousy” around to explain specific behaviors, while the true reasons often is on the behavior of the other half, which is ourselves. If we neglect the succubus when working with other spirits, she could be hurt, or if we suddenly stop interacting with her for longer period of time, she could feel neglected. Any relationship needs maintenance and attention to some extent, and that includes spirits.