It sounds like she is lonely but that she is curious about being with someone else, but hopefully she will get over that. At this point, there is no one out there, sorry, but statistically it is hard to find someone who is going to be better than the person in the primary relationship unless there is some kind of abuse. Having said that, I think you were fine to state your true feelings regarding the welfare of your son and your wishes. Having a sexual relationship even in separation may be a big mistake even if you both act like it is OK. Jealousy may rear its head in other ways and trust will be more difficult to rebuild later. Try to be patient and avoid a rebound relationship. It is only a month, aloooong time now, but not in the big picture! You will do great.
Me:38 H:39 MLC M:10 R:23 years D6 S3 Bomb: Easter, 2007 "Every day may not be good, but there's something good in every day."