I agree but also disagree with the other people. I think you should go up to her, tell her at least how you feel about her and if you honestly love this girl, tell her that you understand whats going on with her but you love her and will wait for as long as it takes for her feelings to heal, then if you want you could still propose and tell her you will wait for her respond, that she doesnt have to give it to you right away.. I think that way your giving her time to think about things and she wont feel rushed but you will feel way better getting everything off your back because if you just leave it be like every one else is kinda telling you to do then you will just be pacing back and forth waiting... Trust me!