Spacey, it's very hard telling people what to do in such delicate situations. I'll share with you my thoughts, and it's up to you to make heads or tails of it.
I'd bet money she knows. Heck, if we are more sensitive than ordinary men, what do you make of GGs? They have 6th, 7th and 8th senses to work with, it's unfair competition.
My take? She found out but cares too much about you to violate your space. Especially since you told her there's something you will need to talk about.
I mean, put yourself in her shoes. Right now, her mind is probably on overdrive trying to fill in the blanks the whole situation has created. A "secret" to be unveiled, female paraphernalia in the basement, awkward silences. Problem is she may be making the wrong assumptions about you. She may feel unappreciate, replaced, cheated, left out, who knows?
I've found that honest, open and direct communication to be the best remedy for such instances. Not sure it works for everybody, but it did for me. It was awkward at first, it produced a flurry of questions, but it was also very liberating for me and my SO. We started to fill in the blanks together, guesswork was over!
Hope it works out well for you guys.
Good luck!
