Hello Anglika,
Yes, I found "Crystal Pepsi", too.
But it is not likely that the man invites his girlfriend for Pepsi
after asking her to marry him.
I forgot to mention it, but he's very rich man.
So I thought it could be something special such as champagne
or wine.
But I'm not sure now. It might be pepsi or totally different thing.
I'll keep searching.
Thank you for your time and kind remark.
Tara