No draw by repetition?

How is this not a feature? Was my game just some sort of glitch?

I'm not sure, but I think you have you claim the draw, like in live chess.

If the moves are repeated 3 times, then if you click the offer draw button, it claims the draw, instead of offering a draw.

White got tired after 90 moves?

You have to press the "offer draw" button to claim the draw. If the same position has repeated three times (or 50 move rule) thw game will finish as a draw.

Well we both didn't know you had to claim the draw so we were just blitzing, I figured I deserved the win for having more time :P

I was always wary of Na2. It was his best try though, he was running out of time.

What a ridiculous game...

Chess.com should send people to an info page whenever "repetition", "50-move rule" or "insufficient material" is in the title.

...or "resign".

In all fairness it was a Live chess game, so no, there was not a big green claim draw button to notice.