$10+1 a couple of hands in no reads.
blinds 50-100
Hero BB - 1670
Villain Button - 1900


Folded to Villain who raises to 300
SB folds
I call with K4 [img]/images/graemlins/diamond.gif[/img]
(The reason I called is I tought he was trying to steal)
FLOP: T4Q rainbow.(Suits don't matter)
CHECK:CHECK
TURN: 2
CHECK:CHECK
TURN: 9
CHECK: and Villain goes all in?

What would be your read on this situation?
Why did villain raise and then not raise flop or turn?