( PEOPLE.com ) -- Rosie O'Donnell was attracted to Michelle Rounds the moment she saw her in a Starbucks this summer . But she never thought it would be reciprocated . `` I thought she was a 28-year-old heterosexual girl , because that 's what she looked like to me . And she 's a 40-year-old gay woman , '' O'Donnell , 49 , tells ABC 's `` Nightline '' in an interview airing Monday night . She adds with a laugh : `` My gaydar was way off ! '' RELATED : Rosie O'Donnell : ' I 've Stopped Being So Angry ' But O'Donnell , who recently said she 's in love , thinks maybe it 's a good thing she thought Rounds was straight . `` I think if I had known that she was gay , I would n't have been brave enough to talk to her , '' she says . O'Donnell 's new nightly talk show , `` The Rosie Show , '' debuts Monday on the OWN network . See full article at PEOPLE.com . © 2011 People and Time Inc. All rights reserved .
O'Donnell recently said she 's in love . Comment: Her new nightly talk show , `` The Rosie Show , '' debuts Monday on the OWN network .