Villian is 30/1.5/0.45 over a miniscule 70 hands.

Is it time to let these go?

PokerStars No-Limit Hold'em, $0.25 BB (9 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver Cards)

CO ($9.50)
Button ($26.45)
SB ($24.50)
BB ($24.70)
UTG ($30.40)
UTG+1 ($24.15)
Hero ($25.85)
MP2 ($15.25)
MP3 ($24.40)

Preflop: Hero is MP1 with , .
2 folds, Hero raises to $1, MP2 calls $1, 4 folds, BB calls $0.75.

Flop: ($3.10) , , (3 players)
BB checks, Hero bets $3.5, MP2 raises to $7, BB folds, Hero ???