Villain is VP 30, PF 10, 3Bet 7 Agg 2.7 (0.6/10/2) over just 41 hands

Likes to limp into pots if he can, but have seen him raise PF w/ AA and 99

Starts off pretty innocuous, then nasty exG/F board leaves me really unsure where i am.

PokerStars No-Limit Hold'em, $0.05 BB (6 handed) - PokerStars Converter Tool from FlopTurnRiver.com

CO ($3.93)
Button ($5.03)
SB ($3.50)
Hero (BB) ($8.12)
UTG ($8.53)
MP ($12.66)

Preflop: Hero is BB with 10, 2
4 folds, SB calls $0.03, Hero checks

Flop: ($0.10) 10, 8,4 (2 players)
SB checks, Hero bets $0.05, SB calls $0.05

Turn: ($0.20) 2 (2 players)
SB checks, Hero bets $0.15, SB raises to $0.50, Hero raises to $1, SB raises to $3.40 (All-In), Hero???