Jon Gosselin royally screwed over Kate Major after he convinced her to quit her job at Star Magazine to be with him, only to leave her a few days later to be with his true love Hailey Glassman.  Now, pissed off Kate Major is fighting back by either making stuff up or spilling the beans about her relationship with the father of eight.

She took up Star rival Life & Style’s offer this week to give a tell-all interview about douchebag Jon. Here are some evil tidbits:

Their first secret sex encounter happened at a seedy NJ hotel (and yes, Kate paid):

Jon never wanted to use his credit card — he was worried that he’d get caught or spotted. On July 20, we went to a hotel in New Jersey. I paid for the room, and he snuck up a back way. That was the first time we slept together. He said he was falling in love with me. He said, ‘I thought Hailey was perfect until I met you.’

It’s all cool though. Jon paid Kate back for the hotel by taking her out for some greasy fast food (mmmmm). He also waited for his kids to fall asleep a few days later and hosted another sex session at his own home:

Jon said he couldn’t be seen having a girlfriend, so he told me to drive to a neighbor’s house after midnight, when the kids were asleep. He said he’d pick me up on his four-wheeler, take me to his house and drop me off again at 6 a.m. I was shocked and said, ‘No, I don’t feel right doing that. What if the kids wake up?’ He was like, ‘They’re not going to notice, they’re not going to see anything.’ He wasn’t nervous about it —I was. Looking back, it was all pretty much sexual. That’s what he had in mind.

Finally, Kate told the mag that Jon suddenly broke things off with her a few days after their first hook-up with a text message that simply read: “Do not contact me again”. According to Life & Style, “He used me for sex and dumped me by text”.