The former talk show host doesn’t know “if it’s jealousy, competition, or the fact that she said a mean thing about me once that really hurt my feelings.”
The chat show host admitted it has been "really tough for everyone" since the dancer and DJ died last week aged 40.
‘Heartbroken’ Ellen DeGeneres Pays Tribute To Co-Star Stephen 'tWitch' Boss: ‘I Loved Him With All My Heart’
The dancer was the resident DJ on The Ellen DeGeneres Show, which he joined in 2014.
His wife confirmed the news of his death in a statement issued on Wednesday.
The pair dated from 1997 to 2000.
"I was like, ‘you know what guys? Let’s make this a completely new chapter’.”
The comedian announced her long-running show was ending last year, following controversy over allegations of a toxic workplace environment.
The Duchess of Sussex really embraced her silly side.
Appearing on Ellen, the Hollywood star attempted to clarify her headline-making showering stance, but her latest comments may not fully help her cause.
The former Friends star was the first celebrity guest when the show launched in 2003.