They're back in the states now, but did Jon Gosselin pop the question to his 22-year-old girlfriend Hailey Glassman while they were in St. Tropez? That's what the latest round of rumors seem to be suggesting!

In Touch Weekly reports that Jon proposed to Hailey on July 12, and the very next night, the couple and Christian Audigier celebrated at the VIP Room. Hailey was flaunting an $180,000 engagement ring, and a source tells the mag, "Jon said to Hailey: 'Why don’t we get married in Vegas?' and she squealed 'yes!' They are already talking about staying in the Venetian Hotel on their wedding night and what sort of dress she’ll wear." Vom!

Here's John and Hailey the other day looking all sorts of lovely dovey as they sunned themselves on Mr. Audigier's boat...does this look like a newly engaged couple to you?