So when it came time to get serious with now-husband Alejandro Monteverde, the Hollywood Girls Night star, 38, had one rule – abstinence.
"Because of the situation I was in before, I was just treading lightly, and did not want to make any mistakes in this relationship," Landry explains on an episode of The Wendy Williams Show airing Thursday. "We abstained from having sex until we got married."
"I had heard something right before the wedding. He swore that it was not true, but I had that feeling in my gut," she says. "All of my family was flying in – it was a destination wedding – and I really should have put the brakes on it at that point, but I was afraid."
Her suspicions aroused, a friend of Landry's offered up her phone-tapping skills.
"I was like, 'I don't want to tap a phone! I can't believe I'm doing this.' So she did, and right after the honeymoon I started getting phone calls from these girls," she recalls. "I confronted him and he still – to this day – denied it and never apologized. It was horrible."
Two weeks after the wedding, Landry filed for an annulment of her marriage, which was soon granted. Crushed, the actress found herself seeking solace in religion – which led her to Monteverde.
"I was so side-swiped by the whole thing ... I never really got angry. I discovered a lot about myself and I'm a better woman because of it," she notes. "I met my husband at a theology class in L.A. – who knew? He was the person I was meant to be with."