Langridge is part of Team GB's men's eight rowing team who claimed bronze at Eton Dorney on Wednesday.
Already a silver medallist in Beijing, the Crewe-born 29-year-old was desperate for gold but Britain were eclipsed on home waters by Germany. They were then pipped to silver by Canada.
Langridge said: "We wanted gold, and we went for gold so it is disappointing but I think we can be proud of the way we raced.
"We could have played it safe and got the silver, but we went for broke and did everything we could.
"I was in the eight four years ago and we never put ourselves in the fight for gold.
"It's been really disappointing over the last four years that we didn't put ourselves to win. We did today but just ran out of steam."