Having starred for Madrid throughout the competition, this year's top scorer drew a blank against Liverpool in Kiev.
Substitute Gareth Bale stepped up to seal a third straight title as the Blancos prevailed 3-1, with Karim Benzema also getting his name on the scoresheet.
That statement caused an instant reaction, with both Madrid president Florentino Perez and coach Zinedine Zidane speaking out to deny his exit.
And while he later claimed he was taken out of context, the Portugal striker seemed to regret the storm his comments had caused.
"It takes away from a beautiful, historic moment for us that is winning three Champions Leagues in a row, obviously it is a special moment," he told Fox Sports.
"It's always great to win the Champions League because I know how important that competition is, I have had a great Champions League from start to finish so I'm very happy.
"A player's personal things aren't the most important thing now, it might have been taken out of context but maybe I shouldn't have said what I said."
Ronaldo finished the 2017-18 Champions League with 15 goals in 13 starts, and now boasts no less than five winner's medals in the competition with Manchester United and Madrid.