Wow...at the beginning of your blog I was going to say something about sometimes not meeting the best people right away when opening a relationship. But the story about thy lying 16 year old and her mom really takes the cake on bad poly experiences!
There are a lot of good, decent people in the world. Not everything is going to be drama filled with everyone you meet. I'm a big fan of being friends first. If dating and romance aren't something immediately on the table there's less reason to pretend to be something your not.
Is the long distance thing with your boyfriend going to be permanent? Once or twice a year of seeing him is going to be tough on your relationship, especially if there isn't any end date on it being long distance.
Everything will be ok in the end. If it's not ok it's not the end.