I would check again. Then i would reassess depending on the action. Either the BB or seat 10 may have been betting the flush and / or straight draw. I'm thinking that seat 10, putting a fair amount of his stack in may have had a very strong draw, such as QJ suited, or maybe just the NFD. Either way, i would check and await the response from the two other combatants.
To complete the story, I did exactly this, checking with a view to reassessing, but most likely raising if seat 10 bets. BB did a long dwell again, looking me up and down and eventually checked behind, as did seat 10. I think BB may have a king but most likely my K is good.
The river was a 3, and I bet out 7,000. BB dwells again and makes the call. Seat 10 now goes all in. I called and BB folded, complaining that he'd "completely mangled the hand"
Showdown.
Me K7
10 Pocket 3's that got there on the river!
BB Showed K6
I clearly made mistakes in this hand but what do you think about the play of BB and seat 10?