There’s a reason Katie Holmes has been looking so happy lately! Following her divorce from Tom Cruise, Katie has reportedly been meeting up with ex-fiancé Chris Klein in New York City — Katie and Chris ended their engagement one month before she began seeing Tom — and it sounds like things are getting serious. “She is so thankful to have some lust and passion back in her life,” a source tells Star magazine.

According to the report, Chris’s contact with Katie began earlier this year, and the two engaged in “heated texting” once news broke of Katie and Tom’s divorce.

“There was definitely flirty communication between the two,” the source adds.

Chris even reportedly arrived in NYC on July 6 to comfort Katie in person, as the American Pie star was spotted sneaking into Katie’s Chelsea apartment!

“It was a sexy, supersecret rendezvous,” the source reveals. The vibe was electric.”

Despite their reported closeness, however, Katie is “not ready to introduce Chris” to daughter Suri Cruise.