I'm not understanding why you need it decoded. The first seems pretty strait forward. The 2nd, sounds like you've figured it out. Looks to me like the issue is not decoding what she's saying, but figuring out how to respond.
My thoughts on how to reply to "Were you ignoring me" are, "Not on purpose. What did you want?" (Or what were you saying, or some such, something showing you are ready to listen). Or, "Sorry, I was focused on what I was doing", again, followed by an invitation to say whatever it is they were saying.
As for the other issue, I think, generally, it's best to realise she doesn't like being corrected and don't do it unless it's really important. Or in some cases, save it for later.
But, as for how to reply to the comment when you do get it, basically, don't reply to the literal statement. Especially, don't reply with anything about whether it's true that you "always" do that. Stick to the topic of the moment.
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not aspie, not NT, somewhere in between
Aspie Quiz: 110 Aspie, 103 Neurotypical.
Used to be more autistic than I am now.