Kate Gosselin and Jon Gosselin Divorce?

According to new reports, Jon Gosselin has been sleeping in an apartment and has told his neighbor that his marriage to Kate Gosselin is "over."

Kate, the shrew with the hideous haircut that can not be tamed, has made 50 public appearances in less than a year while Jon is the stay at home daddy. Kate reportedly brings her bodyguard lover Steve Nelid everywhere with her - even if she's just going to Starbucks.

Jon has gotten suspicious and allegedly threatened to hire a private investigator.

The married Neild -- who once worked for Bill Clinton, and is often photographed not wearing his wedding band -- were "very physical, often touching each other," says an employee at a recent promotional appearance for their TLC reality show.

"She was gently poking him, giving him little love pats, totally unlike the slapping she does with Jon. She and Steve were joking around so much, I actually wondered if they were having an affair. There's a lot of open affection between them." The employee adds Kate showed no affection at all to Jon at the same event.

The bodyguard's wife says that these affair rumors are "ridiculous."

Meanwhile, Us has new deets about Jon's other dates with Deanna Hummel - the two were apparently "all over each other" on various occasions

A family source says "Kate doesn't want to work on it, he doesn't want to work on it."