She may be feeling guilty, she may be trying to reset status quo since you were not just accepting her apology but seeing it for the manipulation it is (alcoholics have very good radar if their BS is working or not most of the time).
I also (as a former drinker) suspect there is some drinking happening in the morning and very likely alcohol hidden in the house to top up her buzz in the morning. I remember when I started doing that and thought I was so clever to be “fooling” my spouse and proving how productive (dare I say “functional”) I was to myself, but it was just more addictive lies to myself and others. . .