Please read this and tell me why I lost?

------ Starting Hand -------
Dealing pocket cards: [4h, Jc]
putt calls
Arcanis folds
prawn calls
cabas calls
Arcanis sits out
Mazimuz calls
Opie_00 calls
ohno calls
meganpepsi folds
g-string22 checks
Dealing flop: [4c, Ah, 8h]
g-string22 bets $100
putt calls
prawn calls
cabas calls
Mazimuz calls
meganpepsi sits out
meganpepsi sits out
Opie_00 folds
ohno calls
Dealing turn: [Kh]
g-string22 bets $300
meganpepsi sits out
putt sits out
putt folds
prawn folds
cabas folds
Mazimuz calls
ohno folds
Dealing river: [9h]
g-string22 bets $1300
Mazimuz calls
Mazimuz shows [4h, Jc] for a flush Ace high
g-string22 shows [3h, 6h] for a flush Ace high
g-string22 wins main pot 4125
g-string22 wins side pot 25
Mazimuz leaves the table
meganpepsi leaves the table
------------------------------