Last year I read Chalene Johnson's book Push which was incredible book about getting your priorities straight and losing weight for good. The book has a chapter called Fat Free Friends and the other day Chalene shared this statement basically summarizing what the book said and it was a good reminder for to hear.  
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"Think about the friends to whom you give your energy. I say "energy" because sometimes we give our energy to those who we aren't even spending time with physically, but loads of time is spent on them "mentally". Your mental time is just as important as your physical time.

Friends who lift us are good listeners and help us gain important perspectives.

Friends who lift will ask you to think through big decisions and consider all the variables. Friends who lift suggest the best books, a new workout, a seminar and things that enrich your life.

Friends who suck the life out of us ask us for our advice but never take it. One sided friendships are those with people who expect you to be there even when they are not. Friends that lift can will say, "I'm sorry...I messed up. You were right. I was wrong." Friends who lift want the best for you at all cost even when their honesty might result in a fight or temporary tension. Friends who lift will not tolerate behavior or thinking that is less than you deserve.

Friends that lift don't need constant reassurance because they have the quiet confidence of your bond and never question your intentions.

Ironically, friends that lift require the least amount of maintenance. They just get you!

Research shows that the quality of our friendships is one of the most important factors in determining our happiness, success and overall mental health.

Invest in friendships that lift you and spend less time and energy on those that don’t.

Think of your positive energy friends as the key to your best decisions and the president of your fan club . They make your life richer!

And let's be frank...even the best of friends can argue and disagree, but friends who lift always come from a place of your best interest. Real friends are there for each other and just like a marriage... the tough times make you better!

So who will you give your energy to? Who do you need to spend less time on?

It’s less about breaking up with those that drain and more about consciously decided to spend less energy on them. It's about spending energy with those people who inspire you to be better!"