Adam Lambert and Sauli Koskinen
There is no way that you have forgotten about Adam Lambert, the runner-up in the eight season of American Idol! Anyway, Lambert started dating the reality TV star Sauli Koskinen in 2010. Sadly, they called it quits three years later but the relationship apparently ended on good terms.
Ben Whishaw and Mark Bradshaw
There are many celebrities who would rather keep their personal lives on the down-low. Ben Whishaw is one of them. In 2012, the media went wild when he announced that he entered a civil partnership with Mark Bradshaw, an Australian composer.