The actress/model went public with her romance with Paul Krepelka on New Year...
A source tells Life & Style magazine, "The long-distance thing proved too much for them, and they just mutually decided that it wasn't going to work. He didn't want to move to L.A. and she certainly can't move to Boston. They're still friends."
Jenny McCarthy, 38, met Krepelka on a blind date.
The split comes almost a year after Jenny McCarthy and Jim Carrey broke up after a five-year romance.