To whom it may concern,

I write to you today with a heavy heart as I seek to express the utmost sincerity of my regrets for my actions during our last meeting. It is with a deep sense of remorse that I have come to realize the error of my ways, and I wish to offer my most humble apologies for any offense or discomfort that I may have caused.

I understand the importance of behaving in a professional and respectful manner, and I regret that I did not live up to this standard in our previous encounter. I realize that I have fallen short of the ideal behavior expected of me, and I take full responsibility for any harm that may have resulted.

I would like to extend my sincerest apologies for any inconvenience or grief that my behavior may have caused you. I understand the need to maintain an amicable relationship, and I hope that you will find it in your charitable heart to forgive my misstep.

I would be grateful for the opportunity to discuss this matter further, in hopes of coming to a mutually beneficial solution. I offer these words with sincerity and hope that they may bring you comfort.