Or was that river bet ballsy?

http://www.pokerhand.org/?463814

This guy seemed very straight forward and his calling kinda scared me but then I thought that almost anyone would check a high flsh or a boat OOP, and decided to fire again.

I have found myself checking the best hand too often on the river, specially against calling stations. My river aggression actor was at 1.8 and after realizing that, it's gone up to 2.1. Also I win at SD 73% ofthe times when I bet/raise/check raise and only 34% when call.