"Yes, I am semi-single, but definitely NOT YET ready to mingle," Glassman wrote on her Twitter page Monday.
Glassman, 22, is ten years Gosselin's junior and met the reality TV dad through her own father, a surgeon who gave Jon's soon-to-be ex Kate Gosselin a tummy tuck.
Jon's new lady love said she needed a break from the drama with Gosselin but that the relationship wasn't over for good.
"I need some Hailey time and regroup myself and my life," she wrote.
The two have been dating on and off since May and announced their relationship just after Jon and Kate publicly said they were separating.
The couple spent the past weekend issuing statements about their reportedly rocky relationship, starting with Glassman's claim Friday that Gosselin threw "mantrums" and was emotionally abusive. Jon swiftly issued a statement of his own, defending their relationship and apologizing to Glassman.
He also apologized to his sweetheart at a New York City synagogue Sunday night, saying the two were going to "slow things down" to avoid making "the same mistakes" he did with Kate.
Jon and Kate are sharing custody of their eight children.