27 year olds are adults, perfectly capable of making their own decisions about their love life -- whom to get involved with, whom not to. If AFWAW tells a woman up front what his sitch is, then it's up to her to decide.
I personally don't think it's fair for HIM to, because it ordinarily makes the LBS too emotionally hung up on the "new love" to be able to receive any emotional connections from their wayward spouse if and when they come to their senses and decide to give them, but in this case, I really don't see his wife coming back.
