Flop 9 hi flush - hows my line?

Party Poker No-Limit Hold'em, $ Hero (6 max, 6 handed) FTR converter on zerodivide.cx

Button ($87.95)
SB ($117.70)
Hero ($225.38)
UTG ($419.92)
MP ($81.70)
CO ($212.43)

Preflop: Hero is BB with 9c, 8c. SB posts a blind of $0.50.
UTG raises to $3, 1 fold, CO calls $3, 2 folds, Hero calls $2.

Flop: ($9.50) 2c, Ac, 5c (3 players)
Hero bets $8, UTG folds, CO raises to $25, Hero raises to $75, CO calls $50.

Turn: ($159.50) 7s (2 players)
Hero calls $147.38 (All-In)

When I 3bet the flop I was probably going to fold to a push but the fact that he called made me think he had a set. On turn I was already very much invested in this pot and decided to put it all in.

Good, Bad, Ugly?

thx for comments in advance