她发现丈夫是个脚踏两条船的人，因为在办公室派对上看到他亲吻了同事。

She discovered her husband was a ___two-timer when she saw him kissing a coworker at the office party.

她发现男友是个脚踏两条船的骗子后立刻分手了。

She broke up immediately after finding out her boyfriend was a ___two-timer.