Sometimes not real good on explaining things but here goes

Each players starts with 3 points, when you win a point is deducted from your opponent, yours would stay the samel. Next round, your opponent wins, their score stays the same but your will be minus 1, The first player to 0 Loses. From what I see of this game, you have won once but your opponent has won twice. so if you opponent wins this round you will be out as they will still be 2 but your will be minus the one and its now zero..

Hope that makes sense....

from the rules
To win a round, a player needs to place all tiles in the hand to the board. As soon as someone manages to do this, the round is over and this player is a winner. One point of score is deducted from all other players. A player who has no points left is removed from the game, and the winner of the round receives one point for any player whom he or she managed to remove from the game in this way. The last remaining player wins the game.