Ya know a few years ago i "broke" away from friends-- all of them, -makes laugh to think, I even had a party to say I was breaking away, I was shocked how many actually showed up for that.. I was moving miles away but in the same state but still.... But face book is my contact with them- it surprises me how many of them after 5 years are so wanting to see me... the thing is, yes they wore me out mentally- with my own issues with human beings they wore me out- so in the end I wore myself out... but agree don't burn bridges.
At times I am sad that I have not seen them in so long, but at the same time I fear we are so "grown apart" that we don't know each other any more- or that some/many never really even knew me.
Oh and I did not make friends with new, I made worker friends that are strickly work- besides my boyfriend of almost 3 years now, which we work together and hooked up after a few years of working with one another but that is some what a strange story
IDK If that relates to you at all-- but I do agree - don't burn bridges-- do your thing that makes you happy.