Knowing Trump, as I think I do, I expect he himself will be joking about accidentally overlooking her while he was surrounded by all the noise, flashing lights, and flashing smiles. That kind of a Grande Entrance is a lot for anyone to be taking in, even when you’re already quite famous.
Who knows, maybe Trump thought she was one of Bobby’s
(Side Girls, or Weekend Ladies), and he was trying to be discreet.