Ask Allison: My unhappily married friend had a one night stand and swore me to secrecy. Can I tell my husband?

Question: I recently went on a girls’ weekend with a couple of friends. The three of us are married, but one of the girls has a very unhappy marriage. They have suffered a lot of infertility and eventually had one child, but their relationship seems horrible.

Personally, I think she is too good for him and he is very cold and dismissive of her, and does nothing to help with the baby. He is a good friend of my husband, so there is a big overlap..