A growth oppurtunity

So over this Thanksgiving break, I gave my sister a call. I was really missing her and just feeling sad because i'm suppose to be at the point in my life where she is suppose to be my best friend. Her and I used to fight when we were younger, my Mom said that when we got older, we would be such good friends... Which we really could have been. I was feeling sad that I couldn't call her and talk to her about school, or boys, or friends...
So I called her, and we talked about some of the struggles at home, then we moved into the topic of our religion. She was saying all these things that don't make sense to her about The Church of Jesus Christ of Latter Day Saints. I couldn't think as fast as she was talking. I think back now and i'm pretty sure I knew all the right answers.... and ya know, she really didn't want to hear the truth. For example she was saying that the "Mormon's own the Coke company". I had never heard that before. I tried to deny it but she didn't accept that because hundreds of people have told her... and we all know that if hundreds of people said it, then its definately true (insert sarcastic eye roll here). She then moved onto another subject, but later came back to this again. I then looked it up on Wikipedia and it doesn't say anywhere in there about us owning the company. I was thinking Wikipedia was a reliable source to her, so it would probably be enough. She also said other things about our religion that I don't ever remember hearing before... I couldn't seem to talk fast enough, but ya know.. I really didn't think she was looking for clarification. I was pretty upset, and I ended up going to my brother's house. He was then texting my sister trying to stand up for me. She then texted me telling me shes dissapointed i sent someone else to fight my battle for me and that I needed to stand up for what I believe in. Thats the thing, I really did stand up for what I believe in, I told her I know its true, I just didn't stand up for myself. She told my brother she was just looking for my opinion on some subjects. He offered to clear up anything she had questions about. She turned him down...
I really learned a lot from my sister. I really saw how much shes forgotten. I always knew the spirit withdraws as you draw further away from the Lord... but I never had really seen it. It's hard to hear everything I heard from my sister. The same girl I shared a room with growing up... but it has helped me grow stronger.