Should I say this to her ?

So last year sometime I was dating a girl. We both liked each other then all of a sudden she just disappeared. At first I was Confused to what had happened but then realised she was suffering from mental health problems.

Yesterday I decided to message her and she surprisingly replied. I just asked her how she was and she said she was fine then asked me the same. I then just said what I was doing at the time just to try and get the convo flowing, but she never replied back.

Was she just writing back to be polite? Or should I just get straight to the point and tell her that I’m still fond of her but I’m not sure how she would take to that given the fact I’ve barely spoke to her In over a year?