But we weren't the only ones! The 27-year-old's Arrow costar Stephen Amell was also thrilled that The CW alum was willing to open up about his sexuality.
The gorgeous guy explained to E! News on Friday that he's super supportive of the hunky actor's decision, saying:
"He's a good guy and he's a good actor…Such a goodhearted gentle loving guy. I'm happy that he's happy."
We wholeheartedly agree!
And, the Teenage Mutant Ninja Turtles 2 star even admitted that there have been times when people have tried to get him to spill secrets about Colton's sexual preference, recalling:
"A fan three or four months ago at a Comic-Con convention basically tried to bait me into outing him. I got in touch with [Colton] and was like, 'Hey, man, this happened [and] I didn't know what to say. I simply deflected and we moved on.'…He emailed me back and said, 'You know, I really appreciate that and I've recently made some decisions over the past few months and I'm excited about what's in the future.' I'm excited for him, too."
Awwwwww! The famous father is such a good confidante!
In the interview where the Teen Wolf alum came out, he also addressed his lifelong struggle with anxiety, which is something the Canada native noticed when they worked together, remembering: