Pot odds or calling station?

[Materazzi]

I was playing LHE 3/6 last night on vcpoker. I was in the big blind with 7-8 os. There were a couple of limpers, then it came to the button who raised it. I called the one bet( right or wrong?), the two limpers folded, and I was heads up. The flop came 9-8-3, I decided he had raised with high cards, so I checked, he raised I re-raised he called. With this, I knew I was leading. The turn was a low card so I bet again, he called. The river was a Q, I shouldve checked but he re-raised me and I called, sure enough he had KQ. I didnt question why he had called right to the river. A short time later he was involved with another hand that he had raised preflop, with just one caller. The flop came Q-Q-9, he raised and was re-raised and again just called. The turn was another 9, again he called a raise. The river came 9. He re-raised, and lucky for him he had made quad 9's against the Q-9 full house. His comment was 'I thought you had the Q'. After this comment I had to ask why, if he thought he was beat, he chased down to the river. He couldnt believe my question and stated pot odds justified his actions, citing his opponent could be bluffing,as well as calling me a 'rookie'. His claim is, if he chases, and makes his hand 1 time in 5, he can make it pay. Now to me he was drawing to one card if he thought the other guy had the Q. Am I right in saying, he didnt have the pot odds to justify his call? Or am I just thinking like a rookie? I have only been playing the game for 10 months. I have read all the books, Sklanksy theory, super system, it seems to me this is a losing play. Can anyone comment on this, because I am puzzled.

Cheers.