Colin is unmarried and is currently in a relationship with his girlfriend Aline Nobre. In 2020, Closerweekly reported that he was planning to propose to his girlfriend in Brazil, but Covid destroyed all of his plans.
He said that he was planning to propose to her after meeting her parents in Brazil. Covid kept all of his plans to hold. Since then, there has not been any report of him asking his love to be his wife.
It is likely that he is thinking to plan another surprise for his love soon. Aline also has a modeling career and is successful in it. The couple initially met each other in 2012 but lost connection after then.
It was in 2019, that they reconnected and fell for each other. They seem to be in a great place in their relationship. The couple might get married soon in the future.