3. Announcing that you’ve already moved on, like “There’s actually somebody else in my life right now”
“I didn’t know he was unfaithful because he was acting as though nothing had changed.” Your Japanese girlfriend will be upset when you use this occasion to confess your shift in loyalties. Telling her the truth will only hurt her. In this case, remember that your new relationship is not your ex’s concern so there’s no need to rub salt in the wound.