"You looked like you have something in your mind," Satella said as she accompanied Zhang Qin Feng in his walk around the new base. Although she's not psychic, her sense as a woman was much stronger than before, especially with this man.
Furthermore, her acute sense told her that his concern wasn't related to another woman but more or less about his power. This was what made her feel thrilled about what is in his mind.
Here in this post-apocalypse, having one or two women wasn't a problem, as long the man can provide more than enough to keep them fed and safe.
What was more crucial was the power the man they're following had in his grasp. Without actual power, everything was nothing more than a fleeting dream. This was also why Satella agreed to let Zhang Qin Feng do what he wanted with Valerian back then after Valerian asked for Satella's permission.