top pair vs unknown

my image right now is new to table, pretty tight havent made it to showdown yet. raised a few pots, stole a few blinds, maybe gotten restolen once and folded. nothing special.

oh, right one hand I raised cutoff he reraises to 105 i called w 77 and bet a 5 4 2 flop for 110 and he raised to like 345 and I folded after thinking a while. he mucked.

this hand:

Full Tilt Poker Game #3208685881: Table Alamosa (6 max) - $5/$10 - No Limit Hold'em - 5:20:11 ET - 2007/08/10
Seat 1: Sevargm ($1,049)
Seat 2: DrObadele ($930)
Seat 3: Grimstarr ($1,189)
Seat 4: zero2lose ($1,015)
Seat 5: natedagreat ($873)
Sevargm posts the small blind of $5
DrObadele posts the big blind of $10
The button is in seat #5
*** HOLE CARDS ***
Dealt to Grimstarr [Ts Ks]
Grimstarr raises to $30
zero2lose has 15 seconds left to act
zero2lose calls $30
natedagreat calls $30
Sevargm folds
DrObadele folds
*** FLOP *** [5d Kc 2d]
Grimstarr bets $60
zero2lose has 15 seconds left to act
zero2lose raises to $210
natedagreat folds
Grimstarr has 15 seconds left to act
Grimstarr calls $150
*** TURN *** [5d Kc 2d] [2c]
Grimstarr checks
zero2lose has 15 seconds left to act
zero2lose bets $222
Grimstarr has 15 seconds left to act
Grimstarr has requested TIME
Grimstarr calls $222
*** RIVER *** [5d Kc 2d 2c] [Js]
Grimstarr has 15 seconds left to act
Grimstarr checks
zero2lose bets $553, and is all in