Ex-Wife's Son Is Painful Reminder Of Unhappy Past  Dear Abby
DEAR ABBY: I was divorced when my son was 9. He's now 24. My ex-
wife married the man she had been having an affair with and they
have a 12-year-old son. I am also remarried and in a good place
in my life.  For the past two years, my son has brought his half
brother to our beach house for a weekend of fun. We honored this
request and enjoy time with our son, but it is difficult having
his half brother in my home. It brings up emotions I thought I
had put behind me years ago.  I do not want these visits to
continue, and I need to communicate this. I'd like to have an
adult conversation with my son to explain the situation. How
much do I tell him about my emotional reasons without being
negative about his mom?  I also don't think he should have to
carry the news to my ex or disappoint a 12-year-old. Should I
send a simple note to her and explain that we will no longer
host her son? -- NEEDS THE RIGHT WORDS  DEAR NEEDS: By all means
write your ex. Expl