My 2 cents.....Be it right or wrong, good or bad, If it doesn't sit well with YOU and you have told her so and she still wants to do it? Then I would say she will not care about your feelings in the future either. Either get used to it or start looking for someone who wants to live within your boundries of comfort. I would not want someone "I LOVE" to have to worry about any possible problems that might arise. Innocent as it may be.
Okay, so it was 3 cents worth.