I wish there was a way, or words I could offer, that could make it easier. Truth is, this is really hard. One thing I can say to you is that no one thing you do is going to break the situation. There are many times I slipped up and initiated a relationship talk, or explained to her how much I loved her. You DO love her and it isn't wrong in a normal scenario to tell people how you feel. Its just in this case it doesn't serve the purpose you are shooting for. She KNOWS you love her. She KNOWS you care. She KNOWS you are waiting for her. That knowledge is helping her continue in her state of uncertainty while she explores her confusion to find her happiness.
I think some of the best advice I had that helped me get through the day (aside from the regular detach and GAL advice) was to breath and just worry about today. I noticed that a lot of my depression and anxiety that I felt about losing my W/best friend/lover/mother of my children was trying to work out the future and how to fix everything. When I was able to take a breath and take a step back from the situation, I was then able to remind myself that things were not going to be fixed today and that I didn't need to worry about how to fix everything...today. Then I was able to focus on letting go of that responsibility while I worked on the daily routine and just enjoying THAT day. I challenge you to do the same.
Just remember that as they say, this is a marathon, not a sprint. Pace yourself so you can finish the race. You aren't going to make any decisions today that are going to break things (even slipping up with sharing your emotions). So, be kind to yourself today. You did not break this so its not going to be your responsibility to fix it.
Hope you have a better day today than yesterday, and a better tomorrow than today.
