Unexpected disinterest may signal end of marriage

DEAR ABBY: My husband and I have been together for 15 years and share a 14-year-old son. We no longer have a physical relationship. I’m trying to decide if it’s worth getting a divorce. Our marital relations were what I would consider normal, at least once a week, before and during my pregnancy. However, once my son was born, it became less and less frequent. We have gone as long as two years without being intimate. This is because of my husband’s lack of interest.