Replied to your PM with answer but for clarity I'll repeat it here.
The bidding enterred a new round after your bid because both you and he had made a bid in the same round.
Your bid did not reset the counter. The counter went to zero - but because 2 people bid in the same round the auction goes to a new round and the timer starts.
In your case the new round started.
You did not bid. He did bid. He wins.