Hero (BB): At the table for about an hour and a half, I'm the super nit at the table. Card dead for the session thus far and unable to find a spot for bluffing. Semi tough table (dealers off the clock and a couple regs). Sitting with approx $200 at this point. Dealt QsQh

Villain (SB): stack about $175. Not a ton of action from him, lost a few pots with medium pairs by others with bigger pairs. Has shown some suited connectors from missed straight draw hands. Competent player, but not one of the tougher ones at the table.

Table is short handed (6 players). UTG ($275) limps for $3. Folds to SB and he makes it $13. I have not been in a pot really at all at this point so I decided to call instead of raise. UTG folds, SB calls.....

Flop: 5J4

SB/V bets $15, I min-raise to $30. After about a minute, V reraises all-in $145-ish

Hero?

Because of my nit image, I think my range is super narrow of JJ+, and AKs and AKo. Is he trying to protect his hand from flush draws? I am thinking he hit his J with AJ, KJ, maybe even QJ? But that's a big risk of his stack if have AA, KK, QQ here.

I will say my PF play should have been raise and not call. AP, my flop raise should have been bigger as well. AP, what do I do facing this flop shove?

I probably would have 3bet preflop. A raise from the blinds is typically pretty strong from a not-of-ton-of-action player, and we're only sitting at ~60bb stacks, so we're cool with going ahead and getting it in. If I think our image is so tight that we're unlikely to get action from anything, then I don't hate the flat, especially if I feel UTG might fold. In the end, we went to the flop in position with an SPR of about ~5 with a well underrepped overpair, so not a bad spot to commit on non A/K flops.

I feel 100% committed on this flop and want to get chips in as soon as possible before a scare card comes. I would have raised a lot more on the flop, at least $65+, which would set us up for a simple turn shove. As played, snap call and I feel pretty fistpumpy about it.

GfistpumpingG

Not to downplay your observations (good detail), but at certain stack depth it becomes somewhat irrelevant - what your opponent could hold, what he thinks you think etc.

Less than 70bb with overpair on wet board, I'm snapping without much thought.

EDIT GG covered it already

Snap it off.

Never folding QQ as an OP on 2flush board for 50bb.

Appreciate the feedback. And yes, essentially shortstacked makes the decision a little more automatic. Downplay it if it's needed, it's part of the learning process.

3bet pre. As played, raise/gii on flop.