QQT8ss vs Squeeze

Hi guys

In this hand I may've been a bit too loose preflop, but I'm not sure. Would like to know what you think about my hand after facing the squeeze?
I thought both villains seemed slightly fishy, especially the opener.

$0.50/$1 Pot Limit Omaha Hi
PokerStars
6 Players
Hand Conversion Powered by weaktight.com

Stacks:
UTG ($100) 100bb
UTG+1 ($68.17) 68bb
Hero (CO) ($101.04) 101bb
BTN ($91.38) 91bb
SB ($116.60) 117bb
BB ($101.50) 102bb

Pre-Flop: ($1.50, 6 players) Hero is CO
1 fold, UTG+1 raises to $2, Hero calls $2, BTN raises to $9, 2 folds, UTG+1 calls $7, Hero calls $7

Flop: ($28.50, 3 players)
UTG+1 checks, Hero checks, BTN bets $9, UTG+1 folds, Hero calls $9

Funny spot. I'm not sure what exactly calling accomplishes.

Should I just ship it? I mean, it's possible I'm crushed, but that might not even matter because my FE could be very high.
The small bet is funny in a way because my profit is lower but my FE could potentially be huge. Shoving would pretty much just be a play to protect myself against often folding the best hand on a later street, as well as punishing villain for betting a naked FD that has to fold.

Right now I like that thought process. What do you think?

Turn: ($46.50, 2 players)
Hero checks, BTN bets $21, Hero calls $21

I'm starting to think I'm spewing. I had absolutely no idea what the best play was, and because of that alone I believe I should've mucked it.
But what is actually the best play in a vacuum?

River: ($88.50, 2 players)
Hero checks, BTN bets $52.38, $52.38 to Hero ($62.04)?
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I'm very confused. I don't understand what the hell villain is doing on this texture after squeezing pre. What should I think? Is calling a good option or plain spewy?