Villian is 17/14/2.5AF over ~80 hands

Need help with the same hand in 2 situations.

$0.25/$0.50 No Limit Holdem
PokerStars
8 Players
Hand Conversion Powered by weaktight.com

Stacks:
UTG ($17.80)
UTG+1 ($7.50)
MP1 ($80.45)
MP2 ($10)
CO ($52.15)
BTN ($50)
SB ($9.50)
Hero ($52)

Pre-Flop: ($0.75, 8 players) Hero is BB
2 folds, MP1 raises to $2, 4 folds, Hero calls $1.50

Flop: ($4.25, 2 players)
Hero ($50)?



Okay lets say you donk bet...





$0.25/$0.50 No Limit Holdem
PokerStars
8 Players
Hand Conversion Powered by weaktight.com

Stacks:
UTG ($17.80)
UTG+1 ($7.50)
MP1 ($80.45)
MP2 ($10)
CO ($52.15)
BTN ($50)
SB ($9.50)
Hero ($52)

Pre-Flop: ($0.75, 8 players) Hero is BB
2 folds, MP1 raises to $2, 4 folds, Hero calls $1.50

Flop: ($4.25, 2 players)
Hero bets $2.50, MP1 raises to $6.50, $4 to Hero ($47.5)?