Is my wife in an affair

My wife worked away from home for several weeks on a course abroad with number of men. Upon her return she cancelled a couple of emails she was writing as I approached, so I had a look and saw an email from a man on the course who spoke of his his affair and asked advice from my wife. He also said, 'and how is your long-term gig going'. In her reply she told the man that I may be able to see her emails and she would 'update' him from her work email. I then realised she has established a new personal email. I asked her about any other email addresses, but she denied this. I then realised she had held a two hour skpe conversation with the man I believe was referred to in the earlier email. I asked her about this and she said he was a nice man who I would get on with. I know she is now in regular email chat with him and they both always sign off with at least two kisses (xx). Is this some type of affair?

Mac, what is your gut telling you? Regardless of what your wife has told you, if you had respect and communication in your marriage, then you wouldn't have to question your wife...she would volunteer the information and she would have discussed every little aspect of her overseas work. Concerning her emails, she wouldn't need to establish new personal email behind your back if you had trust and honesty in your relationship with her because it would be an open marriage. And if you had all four; trust, honesty, respect and communication, your wife most certainly wouldn't have had a 2 hour skpe conversation with a 'nice' man who is a stranger to you. You need to sit her down and ask for an explanation....it's that simple.

Manalone, thanks for taking the time to respond. My gut tells me something happened whilst she was on the course. I know she remains in contact via email, however as he is thousands of miles from us, there will be no physical meet. I still feel betrayed, as I believe she has shared details regarding our relationship with this unknown male. I have considered emailing him as he to is married. I considered asking him what was the nature of his relationship with my wife? Thanks.