Good romantic questions have 3 parts - the excuse, description, and question. "After talking with my friends about love at first sight, do you believe it exists? "
that all depends on how serious your relationship is at this point. but marriage plans and lifestyle plans are always good romatic questions, such as what do you want your wedding to be like, how many kids do you want. etc
You can ask her what she sees your future together as in 10 years. This lets her know you're thinking ahead. You can also ask a rhetorical quesiton, like: What did I do to deserve you?
