The mutual friend to whom the man's girlfriend sent the saucy photos was actually a fake account set up by the boyfriend to trick his girlfriend.
The boyfriend set up the fake Snapchat account using his friend's pictures and started speaking to her girlfriend with that account to catch her.
The Facebook post
The mutual friend was his partner. He posted his girlfriend's semi-nude pics on the Facebook tagging the 'mutual friend' who was his partner, whom she was flirting with.
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