#3. Jon Hamm
Rumors swirled that Jon Hamm, 44, and longtime girlfriend Jennifer Westfeldt broke up after 16 years of togetherness. The reason: Someone wanted kids, someone else did not. Not getting married is so not Don Draper.
#4. Mary Louise Parker
Avoiding marriage is not something that just the men in Hollywood do. There are some women that are content without having a ring on their fingers. Mary Louise Parker has been in her fair share of long-term relationships that did not end up in marriage. She seems to be content in her life with her two children, biological son William and adopted daughter Caroline.