I had a very good relationship with my neighbour, I did lots of shopping for her at the end of 2019 when she had hurt h& Diabetic so I did her shopping until she decided she felt safe enough to start coming with me, partly because like all of us it's nice to get out & get your own shopping instead of relying on others.
Fast forward to this year, I was in Hospital for 11 days (not Covid related), she fed my cat which she always did when I went away. I had to self isolate for 14 days when I left Hospital, my DD did my shopping once a week. My neighbour was walking into our lovely little Town to do her own shopping what hurt is that she never asked me if there was anything I needed or if here was a little treat I would like. She does ask how I am if we happen to be in our gardens at the same time but hasn't been round to see me or even messaged me.
I know she disapproves of my relationship with a younger man I met last August, he's 20 years younger than me, I'm almost 66 & have been widowed for 8 years, he chose me, not sure why but we get on well, it's a great friendship & he makes me happy, I suspect its a case of a "green-eye monster"
I drive & have a wide social circle but I will no longer put myself out for her, neither will I be inviting her to join me for days out.
People can be users , even the ones you had a reasonable relationship with. As to your neighbours, I would definitely put the barriers up both physically if possible such as a gate, fence, hedge & metaphorically
Have you ever been to see a Spiritualist



