But on Seacrest`s show, Kennedy couldn`t stop gushing about her: "We`re more than dating ... we`re more than in love."
"We have an intense connection," he said. Making a Twilight reference, he added, "She`s my Bella. I don`t want to bite her neck, but I want her to live."
Kennedy said Hewitt is "so talented. She can sing, she can dance, she`s hilarious ... and hot since she was, like, 9."
He said the relationship came out of nowhere, adding that he had been "too busy" for love.
But "here`s somebody that breathes life into you in a new way and makes you fuller and that`s what she does to me!" he said of the actress.
"I`m in love, and I don`t care!" he added. "Ryan, you knew off-the-air, because you said I seemed different to you ... it`s amazing."
Of finding love, Kennedy said, "I thought something would happen in my 40s. Hollywood makes us on our own train, and it`s like I have a co-conductor now."
After a year-long romance, Jennifer Love Hewitt and Jamie Kennedy have broken up, a rep has confirmed exclusively to PEOPLE.