The person who shot the video had this to say:
"This is a video I recorded at a wedding in rural Ohio. I was the plus one for my girlfriend who can be seen in the blue dress. The girl who ended up catching the flowers is a good friend of hers from high school. She has been in a relationship with the man, the star of the video, for a few years now, and they have a two-year-old together. We are all friends and they thought the video was hilarious."
Maybe he was "acting" for the camera? Let's hope so and that he makes good on the girlfriend catching that bouquet!