In Too Deep?

[MrFeelNothin]

$50 NL Party, 100/200 blinds, 7 remaining, relevant stacks:
UTG+1(120)
Hero-MP1(2660)
BUTTON(1565)

1 fold, UTG+1 is all-in, Hero(3 [img]/images/graemlins/diamond.gif[/img]3 [img]/images/graemlins/spade.gif[/img]) calls, 1 fold, BUTTON raises(400), 2 folds, Hero calls.

Flop: 8 [img]/images/graemlins/diamond.gif[/img]10 [img]/images/graemlins/diamond.gif[/img]5 [img]/images/graemlins/club.gif[/img]
Hero checks, BUTTON bets(300), Hero raises(1165).....?