Super Quick line check. Betfair 10/20

[lizzag]

Villain has $4500 i cover. No history, I only started playing there today, but he seems standard TAG 10/20 reg, not got out of line yet.

I raise 70 on button with 55, villain in bb makes it 230, i call.

Flop 999.

He bets 300 into 450 pot, i call.

Turn 3. Chk chk.

River 6.

He bets the pot (there is a betpot button btw). I fold.

Totally standard or way too nitty vs standard reg? I've heard both fwiw.