The OP is engaged to be married to his girlfriend of 10 years, and has a 2nd thread on here about this issue. Many members are encouraging him to be 100% honest and upfront with his fiance about his cheating, to give her the option to choose to marry him or not, based on full disclosure. He says she is aware that he has an obsession or addiction to sex, but she is not aware that he has been with prostitutes during their relationship. The OP doesn't believe it's that much of an issue, which is a problem if his fiance is expecting monogamy and honesty within the relationship. He hasn't disclosed that they have an open relationship agreement.