An apology isn't a bad idea. A few things about it though...do not expect it to solve anything, or for him to thank you. This is not a magic bullet that will fix anything. Later he might not even remember it, and that is ok, come a day when an apology will stick and mean something to both of you. : )
THAT is a good day.
Experience is a brutal teacher, but you learn. My God, do you learn. - C.S. Lewis
Life is usually all about how you handle Plan B. - Jack3Beans
Listen without defending; Speak without offending - FaithinAK