Opponent is 22/6/1.9 and I was totally lost here. His line is so weird, comments on all streets are welcome
$1/$2 No Limit Holdem
9 players
Converted at weaktight.com

Stacks:
UTG ($206.90)
UTG+1 ($47.00)
MP1 ($43.55)
MP2 ($98.00)
MP3 ($297.70)
CO ($225.15)
Hero ($476.85)
SB ($213.80)
BB ($50.80)

Pre-flop: ($3, 9 players) Hero is BTN
3 folds, MP2 calls $2, MP3 calls $2, 1 fold, Hero calls $2, SB calls $1, BB checks

Flop: ($10, 5 players)
SB checks, BB checks, MP2 checks, MP3 bets $8, Hero calls $8, SB folds, BB folds, MP2 folds

Turn: ($26, 2 players)
MP3 bets $22, Hero calls $22

River: ($70, 2 players)
MP3 checks, Hero bets $44, MP3 raises to $100, $56 to Hero ($400.85)?