Common (Simple) spot that confuses me, Help.

Im still learning the game so please take that into account but this is a simple spot that always gets me, And i was wondering if you guys could shed some light, Thanks.

poker stars, $1.32 Buy-in (15/30 blinds, 4 ante) No Limit Hold'em Tournament, 5 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite.

Opponent is fairly unknown but had done a phew weird things already and it was only a phew hands in (about 10).


[Early on in a 6-Max $1.50]

SB: 1,538 (51.3 bb)
BB: 1,573 (52.4 bb)
Hero (MP): 1,438 (47.9 bb)
CO: 1,463 (48.8 bb)
BTN: 2,988 (99.6 bb)

Preflop: Hero is MP with Kd Qc
Hero raises to 90, 2 folds, SB calls 75, BB folds

Flop: (230) 2d 3c Ts (2 players)
SB bets 230, Hero folds

Results: 230 pot
Final Board: 2d 3c Ts
SB mucked and won 230 (136 net)
Hero mucked Kd Qc and lost (-94 net).

Typical donk-bet.
If you have no info on player, and he doesnt do it very often - and you missed like this.. just fold and move on.

this is bet pot donk
if you dont fit easy fold

In this spot with that flop fold is your only option