The "someone" is male. I didn't mention the sex originally as I don't have confirmation of any kind of affair between them. So, I don't want to judge based on that, just yet. Also, our state has no-fault divorce rules, so infidelity wouldn't make a difference legally.
I do know that she is interested in the guy. She mentioned this in the process of all this. But she doesn't know if he has reciprocal feelings, and as far as I know nothing happened on her trip. I may find out it did, but as of now I don't know. I could dig through her computer and phone records for evidence, or badger her about it until I get a definitive answer. But in the grand scheme of things, it doesn't make a difference. And, in her plans to move he has not been included. She'll be living alone, across a body of water from him, etc. They may pursue something down the road.
As far as whether she has/had an emotional affair with him. I don't know, but I don't think so...yet at least. They talk very infrequently. The time difference and his work schedule mean they can only chat in the evenings...when I'm around. They don't talk on the phone...which she did...a lot, back when she was bordering on infidelity during the postpartum depression.
It really seems more like she sees him as a possibility after we split. I could be wrong though.
And you approved of the trip, even though she had a prior history to feelings of admitting to wanting to have an affair??
I think you'll find that her sudden change of heart on being married to you is DIRECTLY related to whatever happened on that trip.