KK Should I have folded?

[PJM1206]

$1-2 limit I am in the CO Absolute Poker. I couldnt get the hand converter to work but.... here it goes:

UTG+1 is a typical player sees about 20% or less hands probabaly raises about avg maybe 6% seems fair to good as a player:

I am in the cut off and dealt KsKd:

UTG+1 raises to $2
MP1 calls
Hero reraise to $3
both UTG + 1 and MP1 call:

FLOP [8d,Qh,9d]
UTG+1 bets $1
MP1 folds
Hero raises to $2

I think I am probably ahead here. There are only a few hands that beat me: AA, 88, 99, QQ, JT but board has has good straight possiblities. I think he would have reraised with AA or QQ pre flop but not 88-99 or JT ( dont think he would play JT UTG+1 but maybe) so I think I am ahead.

TURN [10c]:

Athough I called here I think maybe I should have folded:
In addition to the hands that beat me on the flop I need to add AJ, JJ, TT, all hands that he would raise UTG+1 but maybe not cap. I think I may be behind now.

UTG+1 bets $2
Hero calls

RIVER [As]
UTG+1 bets $2
Hero Calls

this is even worse because in addtion to the hands that can beat me on the turn I need to add all the Ax stuff like AK,AQ etc but I still called.

So when should I have gotten out or should I have called down?