Excellent thread, maybes. I also chat up the regulars that show up at my bus stop, and have made friends with some of my neighbours. I love community, I search it out. But then I have not been burned as many of you have. I also am having a lot of fun at our "small group" at the church. It is a chance to get to know a half-dozen people really well. They have been an invaluable resource of encouragement and support.
You are so right, bebu,
my neighbors have all been nice folks whatever their looks or backgrounds. As I get to know them and what's going on in their lives, conversation gets easier. It's a challenge at times, but even having differences helps me to try harder to understand their points of view.
One of our great neighbours are vegans. She is Greek Orthodox, he is agnostic. We enjoy talking about the challenges of being in a marriage of mixed faith. I never know what to bake for them! Their whole-wheat eggless milkless muffins are to die for, though. Only two tablespoons honey.
P.S. Regular people in our society also struggle with developing enduring relationships. I have heard from more than one couple in my neighbourhood that it was a big "wake-up call" when they apply for a passport, foster parenting, etc. These forms all ask for a character reference who is not family. Some modern couples don't have any!