Dear Annie: I’m divorced from my son’s father. My son is 23, and until recently, we’ve always been close.

In June, we took a 10-day hiking trip to Maine, exploring Baxter State Park and Acadia National Park. On Wednesday night of our trip, my ex-husband -- who I was married to for 28 years -- called our son. After that phone call, my son was very rude to me. By the last day of the trip, he was acting terribly toward me and everyone around us.

We flew home on Saturday, and I planned on staying with him that night as I have many times before (I have a three-hour drive home from his house and I stayed with him before we flew out to Maine). On the drive back to his home from the airport, he suddenly grabbed the steering wheel and said, “I’m going to kill you, b---h!” I managed to regain con

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