Kevin Federline's an understanding guy. The mother of his 2 kids -- aka Britney Spears -- is probably busy buying Fantas at the 7 Eleven, and that's why she hasn't congratulated him on his wedding.
As you know ... KFed tied the knot with Victoria Prince last weekend in Vegas. They been together for years and have a kid.
So watch the video and see if you can figure out if Kevin is ticked off that Brit hasn't picked up the phone.