"Ask Amy", the newspaper advice column recently had a letter on this subject, referring to an earlier question from a reader. Here it is:
Dear Amy:
In your column, I have been reading about "exes" who re-enter lives. As a wife who has seen an ex almost ruin my marriage, I would say that couples need to make sure that everything is on the level with all parties. What started out appearing to be an innocent overture of renewed friendship between my husband and his first serious girlfriend turned into a nightmare for me.
It all started out innocently enough -- they ran into each other one day at a local store and exchanged phone numbers. He told me about it that evening, stating that they wanted our families to get to know one another. I begrudgingly agreed.
The "ex" called him several times after that, but she refused to actually talk to me on the phone or in person. There were many long phone calls, lunch dates over the next two years, demonstrating that she really only wanted to be in contact with him.
Unfortunately, one thing led to another.
We have gotten past the incident, but I must confess I am a whole lot less trusting of people's intentions these days.
Trust Your Intuition
You are absolutely right about intuition. Intuition is nature's gift to us, giving us the tools to avoid dangerous situations.
As I have said in this space, unless an ex is willing to come over for dinner and get to know the entire family, these friendships should be avoided.
http://www.washingtonpost.com/wp-dyn/content/article/2006/09/30/AR2006093001336_2.html
It might be best to keep your husband in the picture, just so everyone is clear about relationships.
Good luck!
bebu