'Mad Men' star Hamm and Westfeldt split after 18 years
!['Mad Men' star Hamm and Westfeldt split after 18 years](http://images.worldnow.com/AP/images/8746153_G.jpg)
Months after denying their relationship was over, Jon Hamm and Jennifer Westfeldt are splitting up.
Months after denying their relationship was over, Jon Hamm and Jennifer Westfeldt are splitting up.