Her invitations for wine are NOT attempts at reconciliation. I can tell you that from my experience. My W invited me a buncha times after we physically separated and I agreed to one of them to see what was going on.
They were nothing but temp checks and she got me good. It did nothing but add confusion to my state of mind. It was most definitely not a sign for recon. In my case I wasn't sure if there was an OM, but I had my suspicions. In your case you know there is/was an OM. I would definitely not take up her offer for wine. If I was sure my W had any type of A, I would've not even replied to her messages.
So, if she ever wants to recon with you, she will put in the work and you will know. These little invitations are nothing and there could be a million reasons why she's doing it - she is lonely, she wants to gauge how you're doing, maybe she does miss you a bit, etc etc. Who knows, but it's useless to dwell on those reasons because it is all part of her temp check.
Stay NC/Dark. Take focus off her and keep it on you.