Explosive Fights & Police Calls: Inside Ramona Singer's Hell Following Husband Mario's Cheating Bombshell

The trouble began when Mario, 62, started hanging out with a divorced male friend at parties for singles in the summer of 2013. "It started to feel like Mario was more interested in going to parties than hanging out with our married friends," Ramona writes. "Looking back, these things all seem like obvious red flags, but at the time I let it all go because I thought, ‘What's the harm if my husband is happy?' That was my biggest mistake."

Mario decided to skip the wrap party for Real Housewives of New York season six to hang out with a "friend" in Westchester, north of New York City. After a weekend apart, the once doting husband suggested moving out, so Ramona asked if there was another woman involved. "He told me no and I believed him," the 58-year-old says.

In October, a friend told Ramona she heard Mario had been straying. At a recent party, "people overheard him arguing with a woman on his cell phone when he was in the men's room," the friend revealed, according to Ramona. "He was screaming at her."

When Ramona confronted Mario about speaking to a woman on the phone, he "looked like a deer in headlights," she alleges. Mario confirmed her fear — and cruelly offered more information. "Do you want to know what else I do with her besides talk?" she says he snapped.

Ramona soon learned that the affair was going to be exposed by the press. "It was like a knife had sliced open my chest, and my guts were ripped from my body," she writes. Mario also admitted he had seen his mistress again, after Ramona says he assured her he would end it.

When Mario refused to promise to end the affair over dinner one night, Ramona was "in shock." "I just could not comprehend that this was who he had become," she writes. "Even now, there's a part of me that thinks of Mario as dead."

After a "forced" getaway to Naples, Florida in December, Ramona claims she "started receiving texts from a woman telling me, in crude and explicit language, that she had just been with my husband in the apartment he was paying for."

When their daughter Avery, 20, overheard her parents fight about the affair during her Christmas break, the young college student snapped. "Don't come near me. You cheated on Mommy. F*ck you. I hate you," Ramona says Avery screamed.

Scared for her health, Ramona claims she kicked Mario out of the house when Avery went back to school in January. "I can't be around you. I'm a wreck. I can't. I just can't," she says she told him.

Weeks later, in hopes of a reconciliation, Ramona decided to surprise Mario at their Hamptons, New York, home. When she arrived, "he put his hands on my shoulders and physically pushed me out of the house," she says. "Things escalated quickly and I called the police."

But Mario admitted that he met up with his mistress again. "That was my breaking point. I just couldn't do it anymore," she says. With Avery's help, she announced her plans to move on with the divorce via Twitter in August 2014.

Ramona still calls Mario "the love of my life." "How do you separate from someone who's a part of you? It's like taking Siamese twins and ripping them apart," she explains.

Ramona blames her relationship's demise on her Pinot Grigio business. "I think more than the show, it's the Pinot that really destroyed my marriage," she explains. "I was filming for five months of the year and then for another five months I was on the road every week."

Ramona claims Mario was in the "midst of a midlife crisis" due to his business struggles when his affair began. "I feel that Mario gave up on himself, on his business, and on us," she claims.

Now, Ramona is looking ahead. "I've learned that you just have to face whatever life throws at you head on," she writes. "Some days I feel strong, other days not so much, but I wake up every morning and put one foot in front of the other until I find that I am moving forward."