Dear {Recipient},

I apologize for calling you names during {event/activity} {last night/yesterday/etc.}. That was very rude and immature of me. Please know that I didn't mean a word I said. You may find this hard to believe, but I actually think highly of you as a {friend/colleague/person}. Unfortunately, it seems I have a tendency for putting my foot in my mouth.

I hope you can forgive me. I promise to be more tactful from now on.

Sincerely,
{Your Name}

Dear [Name],

I am writing to apologize for my recent verbal abuse. I understand that my words and actions were hurtful and inappropriate, and I deeply regret my behavior.

I want to take this opportunity to explain why I acted the way I did. I was feeling overwhelmed and frustrated at the time, and I let my emotions get the better of me. I realize now that my reaction was not an appropriate way to express my feelings.

I understand that my words and actions have caused you pain and distress, and I am truly sorry for that. I take full responsibility for my behavior and I am committed to making sure it never happens again.

I want to make it up to you. I am willing to do whatever it takes to make things right. I am available to talk if you would like to discuss this further.

Again, I apologize for my verbal abuse and for the hurt and pain it has caused you. I am committed to being a better person and to treating you with respect.

Sincerely,

[Your Name]

Dear {Recipient},

Please accept my humble apologies for the hurtful things I said to you while we were {doing activity} last {day of the week}. I realized after the fact just how selfish and inconsiderate I had been. Please know that I didn't say those things just to spite you.

I've had some time to reflect upon my actions, and I can assure you that I've learned my lesson. I'll be sure to think before I speak from now on.

Apologies again,

{Your Name}