Dear Amber:

I think that the answer to your question is clear

“Why would she be so angry with me and why would she completely stop talking to me over this?”-

because she wants you to suffer as a result of her withdrawal from your life. As a result of your suffering, she hopes that you will do what it takes to get her back into your life, and that is to not move with your boyfriend farther away.

She is waiting for you to do it her way. That is her MO then, probably not only with you.

anita