There has been this friend who has been very supportive with me the last couple of years

The thing is, she likes to put things into words and solidify situations. Then transfer her thoughts on others, so I don't trust much that she's not pittying and bitching about me behind my back. I can't really tell her, i am 35 and she's about to turn 70 so it really doesn't feel right. We're friends, like meeting for a coffee or walk 2-3 times a month. Since I have stepped back from the community, old friends circle, it is unpleasant knowing she's transferring them my news not necessarily to my benefit.. she's nosy and judges a lot. I still appreciate her and her friendship but this makes me to not trust her, be careful with what I share and sometimes feel bad for sharing things. I too have a feeling as she was a psychologist in the past, that she's constantly psychoanalysing me but I don't think this works good in friendship. I avoid meeting with her... But I don't have many friends and since she stood by my side I am not sure how to handle her.
I am about to leave the island. I don't really feel like leaving a link behind informing the rest of my life...
How to tell her without making her feel bad? It's difficult to talk to her about negatives like that. Once i did about sth else in the past and she really reacted very awkwardly and I felt really bad about it..