If you're clued up on the sure signs that your man is about to propose, then kudos to you.
While it's often pretty obvious, we've got a feeling cheerleader Claire Thorton had NO idea that her boyfriend, Air Force Captain Erick Straub, was going to drop down on one knee during the half time performance at the Arizona Cardinals and Washington Redskins game.
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Erick went all out for the occasion and wore his full Air Force uniform, strolled onto the pitch in the middle of Claire's cheerleading routine and popped the question in front of thousands.
Oh Erick, what a guy.
Want to see his girlfriend Claire's reaction? Watch the proposal as it happened here...
Obviously, she said yes. How could she not? And just look at her totally surprised face!
And don't miss her fellow Arizona Cardinals cheerleading ladies. Emotional, much?
After the event, the National Football League shared on Instagram. Who said football wasn't romantic?
An airman proposes to an @azcardinals cheerleader during #WASvsAZ.