Name Dilemma.

So today I was talking to one of my cousins who I haven't seen since before I got pregnant and we were discussing the name I have picked out for my daughter who is due in August. She immediately told me that I wasn't allowed to use the name because it's a name she wants to use for her daughter and that she would be really mad if I went ahead and used it. This particular cousin isn't pregnant and isn't planning to become pregnant for at least 5 or 6 years. I didn't even know she liked the name. This name is the only name my husbands and I fell in love with but I'm  torn because I don't want to lose the close friendship I have with this cousin. I'm so upset and can't stop crying. What would ladies do in this situation?