“90 Day Fiancé” Season 12 star Catie brazenly cheated on Josh multiple times just months after the two got married. Catie’s shocking transgressions are revealed on the first part of this season’s tell-all, which aired Sunday on TLC. While Catie has a history of making out with multiple people when she’s drunk — and blaming it on having obsessive compulsive disorder (OCD) — she promised in the finale that she would be faithful to Josh after tying the knot. But that definitely hasn’t been the case. Catie has a breakdown multiple times during the tell-all, specifically when she’s confronted about her concerning behavior. “On New Year’s Eve, I…