You're opening the hand, and you have the button, and there are fresh blinds to steal. Easy raise.

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I thought he might have flopped the straight here, what else would he 3-bet with?


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Considering you didnt raise PF, he could have a variety of two pairs here, and feels like charging your possible flush draw. Your raise to BB's bet may look like you want a free card(heh), which rings the bell for SB to protect his hand.

Just my .50 cents...(that i gain when im in SB and you limp QJ)