I think Way2 makes a really good point; the best way to defuse any potential jealousy issues is to involve your significant other as much as possible. If they aren’t willing to participate, or if you cater to clientele that prefer solo shows, maybe your significant other could watch what’s going on from an off-camera vantage point. Once they see that it really is just business, the jealousy should dissipate.
Thankfully, I haven’t encountered any jealousy issues with my significant other, but occasionally he does perform with me. I think having him watch off camera might be a good way for him to see that it is just your job.