200NL middle pair reraised pot strange line by both villain and me

[Vinetou]

PokerStars No-Limit Hold'em, $2 BB (2 handed)Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Hero ($200)
Button ($120)

Preflop: Hero is BB with T[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
<font color="#CC3333">Button raises to $10</font>, <font color="#CC3333">Hero raises to $38</font>, Button calls $28.

Flop: ($76) Q[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $12</font>, <font color="#CC3333">Hero raises to $162</font>,

This is the first hand with this villain. Not really sure why I did this. Pretty weird line. His small bet seems like he has worse hand than mine and it was a donkish enough bet that I thought he might call me with it.