Why is it she may not be talking to me?

So this one friend of mine (or at least I think she's my friend) isn't talking to me. At all. A few months ago, she said I was bombarding her and I left her alone for a month and a half. When I came back, she said she was busy.

I swear she doesn't talk to me though. It's like she doesn't even want to be my friend. She still has me on facebook but even that doesn't seem like it's enough. She's a really good friend of mine and I've been having problems for a while now. I need to talk to someone about those problems and get some things off my chest.

Right now, I just feel like I'm being ignored, though. She doesn't talk to me. I tried texting her earlier. On this one website, she had changed her name to something with a pirate. I played around like I was mad at her and pretending she was a traitor. I said "if you're on a pirate kick, then you'll be kicked like a pirate" and pretended like I was a ninja. It was a week ago.

Earlier, I realized it was really rude what I said and I texted her to apologize to her. I explained to her I didn't realize it was rude and that I'm sorry. I don't understand what her problem is. She seems fully able to talk and communicate with everyone else except me.