Confused on Every Street

[rory]

PokerStars 30/60, 9 handed

Tilting player (TP) limps in UTG. I am pretty sure his goal is to lose all of his money-- he has been capping preflop with any two and doing things like capping the turn with K high or a gutshot. Two callers and a poster, I call on the button with Q[img]/images/graemlins/spade.gif[/img]J[img]/images/graemlins/club.gif[/img], the SB calls and the BB checks. 7 to the flop for 1 bet each.

The flop comes 4[img]/images/graemlins/heart.gif[/img]10[img]/images/graemlins/club.gif[/img]9[img]/images/graemlins/club.gif[/img]. TP bets, two folds, a raise from an OK player and I cold call two with my open ended straight draw straight draw. I thought one of the blinds might call two cold here but not three, and if they were going to call two they would call the very likely TP 3 bet so I could get some more value in for my straight draw.
However both blinds fold and TP just calls.

The turn is the A[img]/images/graemlins/club.gif[/img] of clubs. TP bets, the guy in between us folds and I call?

The river is a blank, TP bets and I fold?

How bad did I mangle this hand?