Just take her to dinner and get her a single rose. That's what i'm doing tonight.
oh man, what a great opportunity to act out the bachelor in real life
set the rose on a bread plate on the table and don't give it to her until after dinner. once you finish eating, look at her and tell her it's been great getting to know her more and that you enjoy spending time with her, and then hold the rose up and say, "mrs wacky, will you accept this rose?"
and then bring her home and bone her and pretend she's Lace.