Dear Fietta,
I am writing to apologize for my behavior towards you. after we talked on steam a few hours ago, I realize that I have been very egoistical, not humble, and bragging about my achievements in your presence. I also understand that I have not been a good person to you, and I deeply regret my actions.
I am sorry for making you feel bad in any way. That was never my intention, and I understand how hurtful it can be to constantly hear someone bragging about their own accomplishments. I recognize that I need to be more mindful of how my words and actions affect those around me, especially those I care about.
I hope you can forgive me for my behavior and that we can move forward from this. I am committed to being a better person and treating you with the respect and kindness that you deserve. Thank you for being patient with me, and I hope we can rebuild our friendship.
Sincerely, Zeyden.