It doesn't seem like the wife of a boss would ask a specific employee to one-on-one beers, unless she had a specific topic in mind. And boasting about pulling strings at Github seems like an unlikely purpose.
To me, it sounds like something happened that was unmentioned. And the wife was asked to talk to her, in order to help settle the aftermath, and make sure she was happy there. (I'm not sure why the wife was deployed instead of HR) Seen another way, it sounds like the wife was trying to help make her happy at work, and not trying to boast.
However, something went awry at the chat, and they seemed to end up not liking each other.
Anyone else feel like the whole story's not being told here?