Justin Bieber is no homewrecker … at least in this case … because TMZ has learned that Big Sean and Ariana Grande‘s split has nothing to do with his mid-concert groping.

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Sean and Ariana are history after 8-months of banging, and sources close to the couple say it had nothing to do with Sean’s real/fake Twitter outburst after Biebs laid hands on his woman during her show a few weeks back

We’re told the breakup was mutual because they’re both constantly touring and just think it’s better this way — but they’re staying tight as friends.

Now Biebs can REALLY make a move … Kendall Jenner probably won’t mind.