In Deep Blue Sea, Gwen helped Duncan out during the challenge.
In Sweden Ya, Gwen was upset to see Duncan go.
In The Final Season...Maybe, Duncan voted for Gwen to win Total Drama World Wide and cheered when she won.
In Lazer Losers!, Duncan asked Gwen if he could follow him to talk, Duncan and Gwen went to the confessional and told her that he was getting really tired of Courtney, Gwen asked Duncan if he was going to break up with her, which Duncan said that was his only thought since he found someone else he likes. Gwen was curious to know who he was talking about, Duncan revealed to Gwen that she is the girl he's intrested in. Duncan proved it to her by kissing her, thus showing they might become a couple. Duncan was upset that Gwen was eliminated after that.
In Foul Play In the Funhouse, Duncan said he was sorry to Gwen that he got her voted off in the confessional.
In Total Drama's Got Talent, for Duncan's talent, he carved Gwen's head into a piece of wood.
In Yukon Do Better Than That!, Gwen said in the confessional that Duncan was being a bit of a jerk lately.