Apology Letter For Mansplaining
Dear {Recipient},
I'm sorry for mansplaining while we were discussing {topic} {earlier/yesterday/etc.}. It might sound crazy to you, but I didn't realize I was being condescending until {you/someone else} pointed it out. Actually, I was in denial at first, but after giving it some thought, I realized {you/name of other person} {were/was} right.
Please accept my apologies. Rest assured I will not offer unsolicited explanations in the future.
Sincerely,
{Your Name}