Dear Abby: My neighbors, "John" and "Marcia," are such a nice couple, I'm not sure what to do. I don't know them all that well, but what's going on is extremely upsetting.

On several occasions, I have seen a woman park her car near my home after dark and walk to the back door of their house. About an hour later, I see John let her out the front door. He even has the nerve to kiss her goodbye right on the front porch! I'm sure he is slipping this tart in for sex — right under his wife's nose.

I want to tell Marcia what's going on, but I'm unsure how to go about it. I have contemplated just going over, knocking on the door and blurting it out. I have also considered writing her an anonymous letter. What's the right way to let someone know that her husband is cheating on her in her own house while she's there. — Not Nosy, Just Concerned, New Cumberland, Pa.

Dear Not Nosy: I strongly recommend that you mind your own business and do nothing. If there was any hanky-panky going on, I seriously doubt that John would be indulging in it while his wife was in the house — and kissing his illicit lover goodbye on their doorstep, yet. The woman may be a relative — a sister, cousin or daughter — so please do not embarrass yourself.

P.S.: When someone is overly preoccupied with the sex life of a neighbor, it isn't "concern." It IS nosy, so please get a life.

Dear Abby: I am a 79-year-old recent widow. Shortly after I was married I had a brief, intense affair with a man at work. I'll call him "Earl."

Earl's wife, "Lillian," was in her third trimester of pregnancy and he was needy. We fell hopelessly in love and our affair continued after his baby was born. We were happy together and nothing else seemed to matter.

Somehow Lillian found out and left him. The divorce she said she'd seek would have solved our problems because I would have immediately divorced my husband, but it never happened. She still loved him, and he decided to do the "honorable thing" and reconcile with her. We swore we would love each other forever, no matter what.

Earl and Lillian moved to a city 50 miles from here and we had no further contact. My husband forgave me, and we had a good life and three children.