DEAR ABBY: My husband died in 2001. There is a man I have been seeing for 17 years I’ll call Jack. He has a home in Georgia. I live in Pennsylvania, where I share a home with my grown son and my daughter, her husband and my 6-year-old grandson. Jack has now retired and wants me to move down to Georgia with him. I have a mortgage on my home, which I pay. My kids cannot afford that payment, although…