good fences/defences/there is a fortress around me all the time
There had been a spat and in the note he apologized to me and hoped we can be amicable neighbors. I saw him after I got the card - was a bit off guard and just thanked him and left really quickly. I couldn't possibly tell him that it meant the world to me and he would have no idea how this made me feel that i matter, that I exist.
but It doesn't take away his thoughtfulness, we both know he was in the right though he did go over the top, as he put it in the note - he "jumped down my throat".
At the time I was extremely shaken and constantly looking out for him in trying to avoid him. When I did bump into him I was politely standoffish - politely chilly , good fences - good neighbor kind of distance kind of thing.
Anyway, that is what happened.