I'm not going to let a guy win at a card game
Why do you think you have to even consider letting the guy win?
Nothing. I just don't want him to win because he keeps on distracting me during the game when I am trying to concentrating on something.
It sounds like that's his strategy, to distract you so you can't concentrate. Good luck with your game, you sound competitive and I hope you can beat him even with the shenanigans he is trying to do. Don't expect to always win though but try your best!
What do you mean I always lose? I'm going to win just for you!
It's great that you have the confidence to try to win the game. Being competitive will help you to focus during the game.