Hailey Glassman seemed like the most sane and normal out of Jon Gosselin’s post-breakup girlfriends, although that isn’t saying much when you consider her competition. When Glassman was revealed as Jon’s latest girlfriend, there were plenty of photos that came out documenting her hard-partying recent past, but she took it all in stride and was surprisingly nonchalant and likable in her first and only interview about her relationship with Jon. She professed to loving the passive aggressive poster boy, but apparently Hailey is no lovestruck fool. In Touch reports that Hailey kicked Jon’s ass to the curb when she found a bunch of sexy text messages and photos from his trip to Vegas with his mommy:

It started with a tabloid reporter and ended with a showgirl. After weeks of lies and cheating, Hailey Glassman has ended her four-month relationship with Jon Gosselin. According to a close friend of the 22-year-old, the final straw came after Jon traveled to Las Vegas without her in late August — even though she didn’t want him to go — and was photographed partying at hotspots like Jet and poolside at the MGM Grand Hotel & Casino surrounded by bikini-clad women. “When Jon came back, he said very little to Hailey, but his phone spilled the details,” the friend tells In Touch. “He had several text messages and photos taken with girls, including a showgirl. Hailey was shocked that he didn’t bother to delete any of it from his phone.”

On September 4, Hailey called Jon and told him she was through. “She’d had it,” the close friend adds. “She said she couldn’t trust him.” Once madly in love, Hailey first grew suspicious of Jon’s extracurricular activities when tabloid reporter Kate Major claimed she and Jon were an item in July. Although Jon told In Touch he and Kate were “just friends,” Hailey was still skeptical. “He lied to her about Kate Major,” the close friend reveals. Hailey also now believes that Jon was with other women as well, after he moved into a bachelor pad in New York. “He would go out and return wearing totally different clothes,” the close friend explains. “Hailey would question Jon about it, and he’d just say he had spilled a drink on himself.” Hailey also believes that Jon collects numbers from the adoring female fans who line the fence at the Reading, Pa., home he shares with his estranged wife, Kate. “She doesn’t want to deal with that,” the friend explains.

[From In Touch Weekly, received via e-mail]

Oh no, what’s widdle Jon going to do? Hailey is his “soulmate,” he loves her more than he ever loved the mother of his children, she encourages and respects him, and when Hailey is with him he doesn’t worry about losing his precious children. Does this mean that Hailey is going to have to return that $70,000 SUV Jon gave her? I bet she ignored a lot, hoping she would get to keep driving that Porsche.

Jon Gosselin and Hailey Glassman are shown out in Cannes on 7/13/09. They shopped at Gucci and ate lunch. Credit: bauergriffinonline.com