drowned in the river again

[NIX]

I raise preflop and play it the same postflop.

Your reasoning sounds good too except for:
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My reraise on the flop was maybe wrong, giving an opponent better pot odds for a flush draw? although pot odds seem good for a draw anyway.

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If you just call the BB's bet, the button and SB are getting 6:1 to call which is fine for the flush. By raising, the button and SB are now getting 7:2 which isn't quite enough to draw to the flush on just the turn (although implied odds will cover the difference). You've definitely made it less profitable.