So hurt

Yesterday I found three random numbers on the phone bill that my fiancé has been texting so I asked him about it. He said he didn't know so finally I googled them and they were escorts offering massages hat he found from backpage.com. After a long argument his explanation was he was curious about it and how it worked and how they get away with it considering it's illegal. He's been texting them for four days, he admitted one number even sent nudes. He said he had no intentions on doing anything just curious about the topic was all. I'm so hurt, I just bought my wedding dress two weeks ago.