Late in tournie (100 left out of 3000)
JQ hearts I limp Position 4, everyone folds to SB who x3 raises, BB folds
I call
flop 10-J-Q with 2 diamonds
he bets 9k into 29.7k pot (weak .. so I think flush or open end draw or AQ)
I raise x3 to 27k he just calls (sign of a draw?)
turn is 4 diamonds
he goes AI
with no history on this player I fold my 2 pair
would a straight draw or flush go AI or would he have made his hand on the turn, if so why AI ? I suppose I was showning strength ?

Any thoughts ?

Reads (if any) on player, and stacks sizes please. (If this is a online hand, hand history please)