It's English, Jim, but not as we know it!

I just noticed that Word underlined the second "She's" in the sentence below as a grammatical error:

“She's a looker,” said Alan. “Brains and beauty, and she's studying engineering. If I was about thirty years younger…”

Can anyone think of any conceivable way that the recommended correction, to "she are" can possibly be right? Or why "looker" is flagged as a spelling mistake?

And is "If I was" correct? I'm sort of thinking "If I were" would be more grammatical, but that one isn't being flagged as an error.

Weird plot bunny

In one of the Supergirl crossover stories I mentioned that Hancock exists in this universe and is now New York's superhero, as at the end of the movie.

So I was trying to think of something to do with him and I came up with a REALLY odd idea, which I think will be a lot of fun to write...

( silly idea )