You should stay dating...
She hasn't broached the subject, your sister did...
They did it but were not into it. I've never had much luck in that area minus a stripper girlfrienf in my twenties. This one however does the other thing I mentioned which in honesty is the ****ing deciding factor I think. You don't cross that too often props to her ex. Like my ex wifes husband should be high fiving me all day long.
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