On Having Unfair Expectations of People OR Boys Are Dumb

So a long time ago, at a youth lock-in, a speaker held up a balloon, and he filled it up with air, and he let it go. And it flew around the room and deflated itself with as much noise and fuss as it's little rubber self could muster before it drifted to the floor, stretched out, spend, and disheartened.

And he told me that that was me - that when I am upset by a person (whether that person is a dear friend who has said or done something to cut me deep or a barista at Starbucks who got my drink order wrong), it's a sign that, deep down in my heart, some part of me was expecting that person to make me happy. Was looking to that person for my happiness. Was holding that person up against an ideal formed in my head by selfish desires and outward influences. Was expecting that person to fill a void in me created to yearn for and be satisfied by God alone. 

Do I agree with every word of that? Not necessarily. But do I believe that, when I expect people to live up to my unfair expectations of them, I'm setting myself up for hurt and disappointment? Every time.