No reads really on BU. SB was recreational that had made very optimistic play moment ago. That also affected my decision on flop. This is that earlier spot:
Spoiler
MP was around 50bb deep and minraised. I called from SB and BB called. Then MP pot bet and stacked off to my raise with just oesd

Anyway for this preflop I would have folded to 3bet without SB cold call but with that I think call is fine in position.

So now we flop top pair with gutshot and bd fd. SPR 2.5 versus SB but also bit over SPR 4 versus BU. As default I would probably lean toward folding flop but with that very fishy play earlier from SB I thought I cant fold. If I continue shoving is probably most reasonable option putting BU to tough spot if he has like AA. I think dry AA should be folding at least.
