A Zits comic Home run:
Jeremy is busy writing a journal he was supposed to be keeping for the last 4 months, and is busy writing about what he thought he was doing 4 months ago. To his mom he says:
Jeremy: Mom what was I thinking about around October 13th?
Mom: That was when your van started idling funny and you were worried about that rash on your leg.
Jeremy: perfect, thanks. (Jeremy walks away, leaving mom thinking...)
Mom: Maybe I do need a job outside the home.
Does this feel familiar to you? Do you remember verbatim conversations you had with your teen months ago that seemed too important to forget, and when you remind your teen about that conversation they look at you like you are an alien from another planet,and say "Ma...Dad...Get A Life." You might hang on every word, remember every detail from the quiz they took in French, what they got, right, what they got wrong, and then remind them of that when the next quiz comes up. Or maybe you remember a fight they had with their "so-called" best friend. You remember every horrible thing that friend said to your daughter, the sobbing on the bed, and the wailing that now she has no friends. You try to remind her of that conversation when yet another fight occurs, and yes, she looks at you like an alien saying, 'nooooo, that never happened before."
Here is the disconnect. Teens live in the moment, and what happens in the moment, stays in the moment. This is why they can let go so fast of events that to parents seem momentously important. Adults live in the future. We look at each present moment as a potential future moment, and therefore have a very hard time letting go. And because your kids and their lives are the most important thing in your life, and you pay wayyyyy to much attention to every detail of it, you will likely feel very unfulfilled a good deal of the time. Because what's important to you about your teen and his/her life, has ceased to be important to your teen.
So if you find yourself, obsessing about every detail of your teen's life, find something else to do! Your relationship with your teen might depend on it!