You are going too far. You have expectations, goals, fantasies. You will be disappointed. I'm getting uncomfortable just reading about it.
I know that the "be yourself" advice doesn't work, because we all know, she doesn't like you. But surely she will like you-pretending-to-be-someone-else even less. So what to do? OK, I think we have to accept that you will be yourself. There's no way out of it; that's who you are. And she used to like you, so it could be worse. You should be yourself, in a kind and thoughtful way. I know you can do that. And that's it. Nothing more. Don't go out on a limb trying too hard. You can't fool her. She knows you. This isn't a first date.
I think you should wear the jammies and be comfortable. And I like Acqua di Gio cologne.
