Dear [Name],
I am writing to apologize for my inappropriate and unwanted proposal. I understand that it was inappropriate and unprofessional of me to make such a proposal, and I take full responsibility for my actions.
I want to make it clear that I had no intention of making you feel uncomfortable or disrespected. I was simply trying to express my feelings and I realize now that it was inappropriate and out of line.
I understand that it is not acceptable to make such proposals in the workplace and I apologize for my behavior. I am deeply sorry for any discomfort or embarrassment that I may have caused.
I have learned from my mistake and I will be more mindful of my words and actions in the future. I will take extra care to ensure that I am not making any unwanted or inappropriate proposals.
I hope that you can accept my sincere apology and forgive me for my mistake. I am committed to making sure that this kind of behavior does not happen again.
Sincerely,
[Your Name]