Opponent makes big AI

These are standard folds I assume?

13th hand of SnG. I've played 3 hands, 1st AA (took half stack but no SD), 3rd AA (reraised same 1st opponent, who pushed KJ, I win), 10th AK (UTG PFR w/ no callers).

No read on opponent.

PokerStars No-Limit Hold'em Tourney, Big Blind is t30 (8 handed) converter

saw flop|<font color="#C00000">saw showdown</font>

UTG+1 (t1520)
MP1 (t1460)
MP2 (t1270)
<font color="#C00000">CO (t1660)</font>
Hero (t3140)
SB (t1590)
<font color="#C00000">BB (t1270)</font>
UTG (t1590)

Preflop: Hero is Button with K[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/club.gif[/img].
<font color="#666666">5 folds</font>, <font color="#CC3333">Hero raises to t90</font>, SB calls t75, BB calls t60.
<font color="blue"> PF, I felt people were starting to give me too much respect, so I raised this. </font>

Flop: (t270) 7[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, BB checks, <font color="#CC3333">Hero bets t180</font>, SB folds, <font color="#CC3333">BB raises to t1180</font>, Hero folds.
<font color="blue"> Why he raise so much? Does he think I have high pair &amp; he has 7? He has PP, 3, FD, nothing?</font>

Final Pot: t1630


<font color="blue"> Later on, this I had a pretty good read on this player. He was involved in a lot of pots, w/ mediocre hands, bluffing, making moves. Would that change anything? </font>