Letting go doesn't mean that person is no longer in your life--it means--you simply don't care what he/she thinks of you any longer. AND you have quit letting he/she take away from your happiness.That was my happiest moment!
An occassional praise or quip is one thing, but putting your relationship drama all over FB for the world to see is a sure sign that there is a HUGE problem. And, if the ONLY thing you EVER post is drama. well, it& time to reevaluate.
Not always so great to notice every little thing but we can't help it! A super INFJ like me sometimes has to avert her eyes. Some things are better left unsaid (and you don't have to say it for the INFJ to hear it).