A lot to unpack here…

It’s completely fine to not like the actions your ex has made after your breakup, but “to disrespect women that way” uh… that’s their job, he paid for a service… these women choose to have this as a job, and they may need the money for any number of reasons.

That aside… if you were broken up with, he’s free to do as he pleases. He shouldn’t have lied about it though, and it’s your choice to not stay with him if it bothered you. Actions have consistencies, and he took the chance you’d never find out I guess…

Also, he probably knows these women would never touch him otherwise… that’s often why guys even pay for a hooker, because they know they can’t get someone that looks that good. You wouldn’t be telling him anything he doesn’t already know.