The fact that she broke your heart and is continuing living her life without a worry in the world. You think that all the time you spent together, wasted. You think it’s all your fault, that you were the cause of the break up. The fact that she “had all the love in the world” for you, and one day all that love dwindled away in the matter of a couple of hours. You think of you could’ve potentially “fixed the problems” between you two, even though it would’ve been a waste of time. It’s almost like she flipped a switch one day and felt completely different way about you, like she forgot how much you loved and appreciated her. The fact that you’ve been in this position before, “but why does it hurt more this time” you keep crying out, expecting a response, knowing that one isn’t coming. Now you put on this mask and pretend that everything is ok and the same, that you’re and satisfied with life. So you decide to build up the courage to actually do something about your pent up feelings. The fact that you think about asking her if she loved you at one point. You decide not to, only assuming she’d say no and walk away. So you think it’s best to just not ask her and save yourself the pain and agony and continue to live your normal everyday life. But at least you finally got the “closure” you needed