After Michael Strahan and Nicole Murphy abruptly called it quits, more information has surfaced revealing the reason why they split. According to TMZ, the Hollywood Exes star called off the engagement after learning that her fiancé was unfaithful.

Allegedly, Murphy found out about Strahan's cheating ways in early July. It's not clear what was the smoking gun Murphy found, but it must have been convincing enough to make her announce their split at the precise moment Strahan was being inducted into the NFL Hall of Fame. While the breakup appears to be new to the public, other sources reveal that Nicole and Michael have been separated for several weeks. Supposedly, their relationship has been on and off ever since the former NFL star started his Live stint on ABC.

Reps from both parties have yet to respond to the claims.

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(Photos from Left: Alberto E. Rodriguez/Getty Images For Nickelodeon, Jason Merritt/Getty Images)