Well, Peggy, you don't have to put up with anything you don't want to.
You could give him an ultimatum, stop looking at porn or leave. But that is unlikely to give you the outcome you wish for.
I am sorry you are feeling low and unsexy in your life at the moment. That is shitty.
But ordering him to stop doing something that many men (and women) do is not the answer either.
He lied to you because of the reaction you have displayed, you cannot blame him for that. Tbh, if my partner tried to "ban" me from doing something that I saw as a harmless release, I would do it all the more.
Have you actually talked to him why he feels the need to use porn? Perhaps he senses you are really not keen on sex at the moment and he is trying to spare you (in a twisted, male-logic kinda way)
You say you had a massive "fight" when you found out last time. Did you talk properly?
However, I agree that escort sites are out of order. One thing though, if you are snooping on the internet history, escort sites will be on the list because adverts for escort sites are on the porn sites, and their banners and images will be saved in the history, even if he didn't click on them.
Talk to him, without fighting.