<human>: Could you distill the essence of the text into 1-3 sentences?

I could not even bring myself to write friend anymore. Here is the issue and maybe I am overreacting, I need some advice, cause on my own I am just not sure what to do. 
So I tore my knee ligament two weeks back. I live roughly 2-3 blocks from work and 2-3 blocks from this co worker's place. We have known each other for a year now and hang out all the time at work and later sometimes.

I told her about my situation where I was barely able to walk. She did come and take me to doc's appointment on one of the days. I worked from home most of the days. Then when I could kind of walk, I asked her if she could give me a ride. This whole process has been a nightmare. She rarely answers her phone, her messages. And I feel stupid asking her again and again. She flaked out on me multiple times. 

She suffered from slip disc last year and worked from home for over a month. I used to go to her place and just work from there at times to give her company. Hung out and helped her whenever she asked without fail. And now she wants to hang out again at work like always.

I can walk, but knee still gets sore. I am very annoyed with her and dont know how to react, except avoid and make excuses. We do work closely, she sits in adjoining cube. I dont want to make a big deal about this whole ordeal, but I sincerely believe in the whole friend in need thing.
She came today and did not even bother asking how I got to work or if I was okay, it was simply the usual do you want to get coffee. She knows I went for MRI and to the ortho surgeon so its not as if I am making it all up.

Any suggestions how to deal with this situation?
<bot>: Co worker flaked out/ditched multiple times when I asked for ride to work which is 3 blocks away when I tore my knee ligament. How to deal with her now while working..