Blaming things on PMS is not fair ball in my house - I don’t do it, and neither does my husband. Nobody gets carte blanche on their behaviour because it’s that time of the month.
The issue of his being respectful to other people would be a big issue to me, but your mileage may be varying.
Wait a second–he’s blaming his bad behavior on you? And on a physiological state you were in, at that? I would not be happy with this if I were you. In fact, I would very much be not happy with this if I were you.
Even if you were a complete emotional wreck at the time, that’s no excuse for him to be behaving like a child. Look–if you had a whiny, miserable kid with you whose snivelling was seriously getting on everyone’s nerves, or if the car broke down in the middle of nowhere in truly terrible weather, would that give your husband license to throw a tantrum? No, of course not. Having you, his wife, with him doesn’t excuse him from civilized behavior, either.
I would not take this as a good sign.
But, as featherlou pointed out–YMM (and perhaps does) V.