Dear Abby: We love our grandchildren, but we’re being taken advantage of

DEAR ABBY: My husband and I love our 7- and 2-year-old grandchildren very much and enjoy spending time with them. The issue is, we feel we are being taken advantage of. Our daughter and her husband are still married but lead separate lives. He works out of town and comes home most weekends. Her weekends usually begin on Friday when she “has to” have someone keep the kids until he gets home (if he comes home). She returns on Sunday night when he leaves for work.

Our daughter expects us to pick up the grandkids from school and/or the babysitter on Friday and keep them every weekend. She doesn’t ask; it’s assumed we will do it. If we say we can’t, or make other plans, all hell breaks loose. It’s the end of the world because she has to change her plans. We have tried talking…