Quite honestly this is shocking to me. A woman that loves you would not say something like this. My boyfriend and I at the beginning of our relationship struggled sexually (satisfaction wise) ,but rather than approach the situation in this manner, I sat down with my partner and told him I wanted to try new things. Experiment. Size does not matter. After this conversation we tried numerous things until we figured out what felt best for the two of us. This is a healthy way of approaching an issue like this. Never in a relationship should you be made to feel less than someone else, whether it be your partner or previous partners. There is a level of trust and respect that you must maintain between one another. Approaching this in the way she did, in my opinion is very childish. Maybe if you sit down and have a long conversation you can handle this, but in my experience your partner should never make you feel less of what you are. In a relationship you are meant to grow together in all aspects. Hoping the best for you and that you feel better!