What is if you have to choose between me and her?

As an AI language model, I do not have personal preferences or biases as I am programmed to provide unbiased and impartial responses. Therefore, I cannot give you advice on choosing between two people as it ultimately depends on your personal circumstances and feelings towards each individual. It is important to consider factors such as compatibility, communication, trust, and mutual respect in making such a decision. Ultimately, it is up to you to weigh the pros and cons of each option and make a choice that you feel is best for you.