It's not me, it's you

Has anybody ever said it's not me it's you? Whether it's breaking up of a romantic relationship or some sort of relationship platonic or not? I'm sure 70% of the time out there it really is 'you' not 'me' let's be honest here ppl, how much of that person can you really tolerate before you have to end it? And that's probably most of our insignificant, acquaintances relationships we have. Time to end those and focus on those that really matter to us. So... It's not me, it's you.