DEAR ABBY: I am a child care provider working with infants. Two of us work in the nursery and share responsibilities. One baby has become extremely attached to me, to the point that I can’t take a break or go to lunch without him screaming until I return. I feel guilty taking lunch breaks or even a vacation because I know that whoever substitutes for me will have to deal with the crying. Other teachers have tried to bond with him to make it easier on everyone, but it doesn’t work. It has reached the point that I’m exhausted at the end ...