Rugby clearly isn't Cressida's sport of choice though, as her eyes were rarely on England's winning streak, but firmly fixed on Harry. Even with all those muscly men running around in shorts - it's definitely true love.
The Brit beauty wore a spring-perfect collarless crisp white shirt dress for the match. Her hair was swept off her face with a pair of Wayfarer sunnies. Effortlessly chic.
Earlier this weekend the pair made another public appearance at the WE Day UK event, where they engaged in some public PDAs.
Clearly they can't get enough of each others company right now.
Get more fashion inspo from Cressida below.