I think a good way to enjoy the nice interactions is just for a short good thing, with no future implied by them, like having a good interaction with someone you never see again, still good to have.
I'd invite your Franken friends up to Essen - show them the place, or meet halfway between - lots of interesting central Germany stuff there - Goslar is great, for example.
That is worth thinking about - asking him to not come down - in a negative psychology way - wonder what the reaction would be. I suspect it might be positive, as this would be a 180 for you? And is good detaching...
Don't sweat it about the sister - she is not exactly neutral, I think -
I ran with music this time, a first for a race for me, and it was good, except for the end, when a 30 minute Hungarian lesson came on... the wonders of random play order...
Luke
M58, xW54 S22, D18 M 1984, D 2016 Living a new life.
