Manga where girlfriend of guy1 cheats with a guy2 but in the end both guy1

Is there any manga in which a mean gf of guy1 cheats on him and sleeps with guy2 without his knowledge (thereby cheating both guys) and the story could move from there and end up the two guys falling for each other. They can have revenge, or something.
2017-06-26 00:01 marked

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