Keep in touch

I was recently laid off. Just like millions of others. I was work friends with a co-worker. Not exactly a work spouse but we would talk often outside of work and she even invited me to get home once. We would take smoke breaks together. Exc. I really thought we were friendly. Anyway fast forward to a few weeks ago. I stopped smoking, but I told her I enjoyed our break time chatting and I would still go with her on breaks. The smoke didn’t bother me. Since then she said she didn’t want to tempt me so that was okay. We stopped talking on the phone and only started waving hi and bye to each other with an occasional bit of polite small talk. When I got laid off she called to check on me. Then she said she had a meeting she had to attend but she would call me back to give me the laid off scoop. She never did. When I called her, she never answered and I took the hint. I guess my question is what happened? I get that she is scared as well and has to protect her job, but why call me in the first place? Or say that you’ll call back. I know workplace friendships are usually transactional but still. I’m a little bummed. Anyone care to share some insight?