Conversation so far:
When did Rosie O'Donnell come out?
In 2002  Rosie O'Donnell came out as a lesbian, announcing I'm a dyke!“
A month later from Rosie O'Donnell's guest appearance on Will and Grace, what happened?
In 2002 as part of her act at the Ovarian Cancer Research benefit at Caroline's Comedy Club, Rosie O'Donnell came out as a lesbian, announcing I'm a dyke!“

Question: What was her reason for coming out?
Self-contained rewrite: What was Rosie O'Donnell's reason for coming out?