Excitement, confusion, a little anger

I've been at my job for going on 5 years... Since the store open. I've been part time all these years. I've always passed up manager positions cus I knew I couldn't physically do the 40 hours and I didn't want to take on a job I couldn't do. One major reason for having the surgery was so I could do this and move up. One of my friends from work went to another company with a waaay better position right before surgery. For weeks she's been hinting and letting me know her manager and distric manager had been asking if she knew anyone good for a managers roll and she's been telling them about me. Well I was going to wait but I went to work not expecting to feel so much better so soon. Last Thursday I asked her about the job and by the end of the day she had talked to her manager and set a interview for me. I talked to one of my manager about her being a reference... I knew something was wrong when I told her cus the look on her face and she made a comment like SHE was going to ask her about a job and when she got it shed try and get me hired on. I told I'm really excited and feel ready cus this could be a big step for reaching my goal of adopting. And I'd be getting paid $2 more. Why the hell did she give me a bad review?!?!? But my STORE manager who I felt really bad cus I hadn't given her a heads up gave me a good one. I hate using this term but for me there is no other way to describe her but HATER!!! Ugh! Well I'm about to get ready for my interview :-)