My friend all of a sudden just stopped answering my texts and calls. Did i annoy her perhaps?

I use to be in her room all the time. I asked her was it alright for me to be in here this much and she said "Girl If I had a problem with It i would let you know". So I thought It was alright. Then all of a sudden she stopped answering my texs, calls, and when I knock on her door, she no longer answers.