200NL KK atleast I managed to isolate

[Bluegrassplayer]

$1/$2 at my local house game.

SB: $200
BB (Hero): $120
UTG: $70
4 Seat: $250
5 Seat: $200
6 Seat: $55
7 Seat: $475
8 Seat: $125
BTN: $415

Reads: Game is pretty loose and a lot of poor players trying to see flops for cheap. Seat 7 is a very solid player who is normally a winner. 5 Seat is also a very good player who just lost with a set to the BTN who hit a flush on the turn and has just bought back in for 200.

Preflop: Hero is dealt K [img]/images/graemlins/diamond.gif[/img] K [img]/images/graemlins/heart.gif[/img]
UTG and Seat 4 fold.
<font color="red"> Seat five raises to 8 </font> Seat 6 folds <font color="red"> Seat 7, 8, and BTN call </font> SB folds
Pot is $35
<font color="red"> Hero raises to $70 </font>
Seat 5 folds <font color="red"> Seat 7 calls </font> Everyone else folds.

Flop: ($170) A [img]/images/graemlins/diamond.gif[/img] 10 [img]/images/graemlins/club.gif[/img] 6 [img]/images/graemlins/spade.gif[/img]

Hero does what? It's very possible he just thought I was on a steal but if he did why didn't he just go over top right there? Is it possible that he has a pair like 10s or Js? Do I throw in my last 50 due to the pot odds and pray that he folds or do I just concede defeat by checking and folding when he definitely goes all in because there is an ace on board. Next time this happens do I just push all in preflop?