DEAR ABBY: My husband had an affair and a child with a married woman before we were together. They agreed to let her husband raise the boy as if he were his biological son. I didn't agree with it.
We have a daughter together who is two years younger than the boy. They will be going to the same middle school next year. Our daughter is very sociable and likes meeting new people. I'm afraid that they will meet and be attracted to each other, not knowing they have the same father. Do I say something now, or wait and hope my worst fear does not become reality? -- KEEPING A BIG SECRET
DEAR KEEPING: Say something now. While there is no guarantee they will be attracted to each other, they should be told they have a half-sibling.