MP3 is 17/14/2/~200, I was running something like 22/22/inf/50 on that table, but if he's running a hud he'll have something like 18/15/6/200 on me. It might just be me that assumes players with that type of stats generally have some idea of what's going on. I hope I'm not giving him too much credit.
PokerStars No-Limit Hold'em, $0.25 BB (9 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver Cards)

UTG ($31.70)
UTG+1 ($12.65)
MP1 ($26.45)
Hero ($26.30)
MP3 ($24.25)
CO ($28.20)
Button ($25.45)
SB ($16.65)
BB ($5)

Preflop: Hero is MP2 with , .
3 folds, Hero raises to $0.75, MP3 raises to $3.5, 3 folds, BB raises to $5, Hero?

NB: BB is AI here

Ok, so folding is out of the question, but calling isn't. MP3 is agro. Is he raising here to isolate a high enough percentage to flat call and push over? Raising instead brings up the question of size, what do you do here?