PLEASE PLEASE SOOO IMPORTANT YOU HELP ME :'(?

You should just be straightforward with both of them, ask them whats going on and let them know whats bothering you. Just like youre telling us, tell them. She SHOULD understand and care, if not then screw it and screw her. it sounds like they may have reconnected and now you feel out of the loop. So talk to your friend, ask her to listen and not get upset but it would mean a lot to you if she could clear some things. Youd be surprised what happens when you sit down and talk things through :}