He split with his actress girlfriend Blake Lively back in 2010 after a two-and-a-half year relationship.
So it would be understandable if Penn Badgley found it a little awkward working with his Gossip Girl co-star for another two years on the hit TV show.
But the actor maintains he and Blake were 'ultimately professional' on set after their September 2010 break-up.
In a new interview, Penn discusses what he learned from the end of his relationship with Lively, who has since married actor Ryan Reynolds.
'I don’t know if I can distil it into a sentence, or even articulate it,' he muses to the magazine. 'We were very much caught up in the show, which itself was a six-year endurance test.
'Our relationship was a part of that and helped us through it. I mean, like anything valuable, it was good and it was bad and it was a learning experience.'
However, when asked if he had bought a wedding gift for Blake's nuptials to Reynolds last September, he replied in the negative.
"No I didn't "
VIA: DAILY MAIL