Sims jealous of prostitutes?

[capitansquid]

Wondering if it's normal for the sims to get jealous when the see the prostitute sim doing another sim? (WW and Wicked Perv). Noticed a few times my prostitute sim gets a client, then gets another immediately and the first one starts crying and getting angry (even though there isn't any other relationship between them).
Wondering if that's normal or if I missed a setting someplace.

Thanks.