DEAR ABBY: I am a 20-year-old male and a full-time college student. On nights and weekends I hold down two part-time jobs. One of them is delivering pizza.
One night two weeks ago, I made a delivery to a nearby motel. As I was leaving, I saw a familiar car pull into the parking lot. It was my mother's Mustang. She was driving.
I was surprised to see her there, so I turned my car around and followed her to the rear of the motel. I watched her park, get out, knock on a door and enter. After several minutes of confusion, I returned to my job.
Two hours later, after more deliveries, I returned to the motel. Sure enough, her car was still parked in the same spot. After 20 minutes or so, I watched her come out of a room with a man I recognized from her office. He's in his late 20s, and I know he has a wife and two small children. (Mother is 41, but looks younger.) I froze. I didn't confront her.
Now I don't know what to do. Every time I look at my dad I feel guilty because I haven't said anything. The news would crush him. Should I continue keeping this to myself or tell someone? -- IN SHOCK IN CHICAGO
DEAR IN SHOCK: It is unfortunate that you have been caught in the middle. The person you should talk to is your mother. Your father needs to be told, but she is the one who should do it. If her co-worker is cheating on his wife with your mother, he could also be cheating with others. In that case, your parents should both be tested for sexually transmitted diseases (STDs).