I no likey the turn.

He's not folding a better hand.

There is value in a bigger pot if he folds his 6-15 outer. But 3.25BB I don't think qualifies.

The other thing - if you are behind, you have next to zilcho outs. This move would be completely warranted if you had the A[img]/images/graemlins/diamond.gif[/img].

that's probably a duh comment, sorry