New to this.
I recently found a made up email account my fiance created. In the account there are emails to 10 or so different women dating back to 2 years ago. They aren't women he knows, just people he has made contact with through online sites. Basically the emails are asking for no strings, casual sex due to being in a relationship.
Judging from the emails, most have been unanswered or went any further than messages. He has also said outright that it never went further.
I have been with him nearly a decade and had no susicpions at all so im in shock.
Unsure what to do.