Advice on what to do from here

So long story short, this girl asked me out a about a year ago, I said not at the moment cause of issues with a mutual friend being an idiot at the time. We talk a lot. And skipping some water under the bridge this year I told her I liked her still. She kinda played it off but began talking even more than usual, and then suddenly a few days after that she randomly asked what I meant by what I had said previously, I told her, she said I was stupid because it wasn't mutual. We carried on like normal talking about everything non stop from dawn til going to sleep and then I decided to stop flirting etc and when I did she got very mad and not we hardly talk and when we do it seems awkward almost. I was just wondering what some opinions there were out there on this situation.

I say get on the relationship topic and try to squeeze a few hints from there, and if you feel she is really interested in either you or why you didn't tell her before, I say be honest and straight up about it. F.E. I just wasn't sure at the time i didn't want to lose you, but we have made it this far as friends and i know for a fact i don't want to lose you and if your feelings are still there for me i would be more then happy to make you and i "us" or something like that, obviously you'll use your own words. Hope I helped, if I did or didn't help or if you have questions, either way reply and if ill reply if need be :)

also what i didnt add, is by reading your post, I can tell she does like you, or else she wouldnt have started talking to you more and more and she wouldnt have gotten mad about u not flirting :) your chances look good my friend :)

Well see that is kind of the problem I see all those signs and stuff, and I know she gets attention from other guys for one cause she told me about it. In particular, how creepy they all are for flirting with her. My flirting was always much more passive but blatant. I acted on a lot of stuff but she always seemed to shrug it off.

It seems like she probably wants to stay just friends so if you dont think that you could just be her friend then try and continue your friendship but if you dont feel that you could only be her friend then you need to move on. Hope this helps.