Can I fold my flush on the river please?

[Professorn]

This is not played in $, it's played in "swedish kronor" (kind of a $1/2 game with 200BB buyin, 5max)

I had no reason to believe that villain where trying to make a move on me or that he would try to run some crazy bluff, haven't seen him do anything REALLY stupid but he is not the best of players for sure.

finnfemfel is 46/8/1.41 (aggr by street 1.2/1.33/1.8)
I'm a solid tag

BossMedia Game #503827295: Table Frida Turbo 8 - $7.50/$15.00 - No Limit Hold'em - 23:39:06 - 2007/11/12
Seat 1: maria_luu ($479.84)
Seat 2: konjak15 ($965.46)
Seat 3: Hero ($3066.17)
Seat 4: finnfemfel ($1413.04)
Seat 5: Maximus1 ($2319.65)
Hero posts the big blind of $15.00
konjak15 posts the small blind of $7.50
maria_luu is the button
*** HOLE CARDS ***
Dealt to Hero [5s Ks]
finnfemfel calls $15.00
Maximus1 calls $15.00
maria_luu folds
konjak15 folds
Hero checks

-a few limpers, let's see a flop.

*** FLOP *** [2d Js 9s]
Hero bets $45.00
finnfemfel calls $45.00
Maximus1 folds

-I decide to donklead with my FD and see what happens

*** TURN *** [2d Js 9s] [6c]
Hero checks
finnfemfel bets $90.00
Hero calls $90.00

-Thought he catched some piece and decided to check i through, I am getting good odds here so I call

*** RIVER *** [2d Js 9s 6c] [2s]
Hero bets $195.00
finnfemfel goes all-in with $1263.04
Hero...?

I donklead again thinking he could put me on a flush and check behind his top pair hands. When he shove on me I'm really confident that he has a full house. I played my hand pretty face up, he didn't play his hand like a FD at all and he isn't scared that I lead into him on the river when the flush hits.

Is this logic good enough so I can make a good laydown? All comments welcomed!