Apologize when you're wrong. You're too young to be losing genuine people because of pride. Stop thinking everyone is replaceable, and stop searching for quotes to defend your stupidity.
You should never be expected to be the bigger person when you didn't create the discomfort in the first place. Too many people cause the chaos, cross the line, then want you to Swallow vour feelings just to keep the peace, Nah. Accountability matters.