@Simone20,
Simone,
Crushes are crushes. Sometimes they just remain that way. Sometimes it is best to keep it that way until you know for sure there is something in it.. Otherwise, it can be a let down, or embarrassing.
If she calls you her child.. She is 50, you 20, it is very possible that she has dry lips and licks them often. It makes sense also to take you and your siblings out, buy you little things. I have adopted kids across the world ...
Quite often our gut feelings are correct. But, sometimes they are not.
Why don't you start having conversations with this lady. Obviously she never had children yes? You could very well just be that to her. Find out more about her by asking her about her... You will soon come to the conclusion one way or the other as to what you mean to her.
If it's "adopting you" ... Is that going to be ok with you?