It's maybe worth looking at how easy opponents find it to put you on a hand.
Could this guy be absolutely certain you had a big pair and would pay him off at some point? Or was he running a risk you'd actually raised something like T9s and were actually semi-bluffing with a decent draw.
yeah I was thinking about this. i think if I have T9s then the only way I put more money in the pot is if he checks the river cos that's the only way I can win it, if he bets I fold.