I am writing to apologize for my behavior at work. I know that I have been teasing you and making you feel uncomfortable, and I am deeply sorry for my actions.
I understand that my teasing has been hurtful and inappropriate, and I want to make it clear that I never intended to make you feel this way. I was trying to be funny and lighten the mood, but I realize now that my behavior was inappropriate and unprofessional.
I understand how difficult it can be to be in a work environment where you feel uncomfortable and disrespected. I want you to know that I am taking steps to ensure that this does not happen again. I am committed to creating a respectful and professional work environment for everyone.
I understand that words cannot undo the hurt that I have caused, but I hope that this apology will help to demonstrate my sincerity. I am truly sorry for my behavior and I hope that you can accept my apology.