Low-limit 3-handed, to aggressive?

[Henke]

My two opponents has been on the weak-tight side (at least for a 3-handed game), and I'm practically running them over. However, the SB in this hand seems to have noticed that recently, and has upped the aggression. I suspect that button will follow soon.

I'm in BB and get dealt 55. Button raises, SB fold and I three-bet. Button calls.

Flop comes 678r. I checkraise, button 3-bets, and I call.

Turn comes T and I check-call.

River comes a beautiful 4. I checkraise, button 3-bets, I 4-bet, button calls. Results in white below:
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<font color="white"> Button turns over TT, and MHIG. However, I couldn't help feeling like a total fish, hitting my 4 outer on the river... </font>

[AJo Go All In]

maybe i'm weak-tight but i would not be able to squeeze out a 4-bet on the river. you have the sucker side.

[eugeneel]

good play besides the very awful 4bet on the river. Very high chance u were up against 99 or A9

-Eugene

[Henke]

Yeah, I thought so... Just not sure how to adjust when 3-handed.