How do I deal with knowing my husband wants to have with a prostitute while overseas on business?

He is there on business and all of his colleagues are cheating on their spouses as well. He says he did it because he had to close a deal and to be one of the boys. He did say he wanted to try it as well. He proclaims his love for me everytime we talk and says it is not personal it just a guy/business thing. He thought this may happen before he left so he talked to me about it. As he and I have a very honest relationship, he felt it important to tell me. Apparently, this is the culture and how business works there. When I talk to him at night, he is very drunk and tells me it is hard to resist girls throwing themselves at him and he hasn't YET because they are not his type. If he's going to mess up, he wants it to be worth it. I love him so much but I don't know if I can deal with this mentally and I kow if I get angry at him about it, it will just push him to do it further.