Geez, I hope I didn't add to their stress

It is sometimes hard to know how to be the best friend. (Of course, I don't mean it's hard to know how to be a best friend, although I have not been anyone's in a very long time - probably not even my wife's. I mean, of course, that it is sometimes hard to know how best to be a friend, which is how I should have put it in the first place if I weren't more interested in creating an annoying parenthetical to explain it.)