In giving an apology, it's important to use several statements and they, generally, should include the past, present and future tense. (I will give an example after this item.) Hillary Clinton deserves an apology. See-causeif a man (even one traditionally underrepresented) snipped at, or was short with, a student or a member of the press, no one would say, "He's fatigued." Nor would they say, "He's jealous of his wife."
If you watched the news "last" morning, the anchors were all asking, "Jet-lag or Jealousy?" Catchy, right?
To back up this claim, please note that even my husband agrees.
Now back to how apologies should work:
past: I'm sorry that I suggested you were jealous and that I said you might have been jet-lagged.
present #1: I know you're smart enough to be mad (or snippy) because you let someone get you mad. (or)
present #2: You don't deserve this treatment by me or by anyone.
future: I will try not to make these kinds of remarks in that they are superfluous and not helpful.
(caveat: I prescribe saying "I will try..." because most people make the same mistakes over and over again. Don-wanna-lie-now.)