Dear Abby: My husband, "Aaron," had an affair with the woman next door. We were close friends. I found out three months ago, and needless to say I'm not happy about it. My husband and I spent a lot of time with her (he obviously more than I).

Aaron swears the affair is over, and he wants us to become a close threesome again. (She's in the process of divorcing her husband, who knows nothing about the affair.)

The three of us have gone to the beach, to the lake, dancing – just like old times. My husband is thrilled; I am miserable.