HU FPS against a fish

[stinkypete]

opponent is quite bad. passive, and likes to donkbet when he picks up draws and at other seemingly random times.

i raise A[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/club.gif[/img] on the button. fish calls.

flop is A[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/diamond.gif[/img] 5[img]/images/graemlins/club.gif[/img]

fish bets. i "think" for 5-6 seconds before raising. fish calls.

turn is 8[img]/images/graemlins/diamond.gif[/img]

fish checks. i check.

river is 5[img]/images/graemlins/spade.gif[/img]

fish bets. i raise. fish calls.