The actress fell for Ben Flajnik when he appeared as a contestant on The Bachelorette earlier this year (11).
She tweeted, "OMG! Ben F... Gotta book a flight to Sonoma!!!"
And, according to Life & Style magazine, she wasn't joking - Hewitt and the rejected romantic were spotted dining out in San Francisco, California on Saturday (06Aug11).
The couple was spotted at Lion's Pub, where revellers tells the publication the pair was "making out".
Another onlooker tells Life & Style, "Ben and Jennifer Love Hewitt appeared to be dating."
Flajnik, a winemaker from Sonoma, California, was a runner-up on the most recent season of The Bachelorette.
Hewitt has had a string of romance let downs - her most recent relationships with comedian/actor Jamie Kennedy, Alex Beh and British actor Ross McCall all ended in heartbreak.