From Alaska to Hollywood – the biggest breakups of 2010

From long-term lovers to short-term unions, Hollywood couples have been breaking up (again and again) all year long. At first, we thought it was just a case of the two-timers. But as the year went on, relationships of all kinds fell apart before our eyes. In no particular order, here are some of the biggies from 2010:

Courtney Cox and David Arquette
They're not divorced. Just ask them. But if you and your husband were separated and he went on Howard Stern to discuss his first sexual encounter with a new woman, we'd bet a divorce is imminent.

Jenny McCarthy and Jim Carrey
A total Hollywood shocker, Carrey announced the split via Twitter stating, "I'm grateful 4 the many blessings we've shared and I wish her the very best! S'okay!" From his involvement with her autistic son, to her relationship with his grown daughter—and their constant praise of each other to the media—we thought this five-year love-a-thon was the real deal. Apparently, we thought wrong.

Reese Witherspoon and Jake Gyllenhaal
We thought Jake had found true love with America's sweetheart — that is until they broke up and she was immediately spotted with a new hottie. But he quickly moved on as well - to a young blonde named Taylor Swift. Watch your step, Jake. This crooner's known to kiss and tell. Just ask John Mayer.

via ca.yearinreview.yahoo.com