2/4 NL. Someone explain this to me

[JasonP530]

So, is the conclusion that I should have checked the turn, and that he made a donkey call(as opposed to having a hole in my game that he exploited)?

My image(if anyone cares at that level was tight). I hadn't really dont much, maybe a one or two raises and CBets, but I cant think of any hand that went beyond the flop.