It felt like that all my life.
Nice relationship of any kind, it ends, people get happier and do the things I wanted to do but we never did. When I'm around is like things don't flow and as soon as I leave they feel like falling in the right place. 
It's heartbreaking for me but I've come to accept it. Like, maybe it's a gift that I leave for the others. Bad thing is, I'm left alone again and sad. Which most of the times I need solitude to regain energy but the universe don't care. People is gonna be happy behind my back and sad on my face.
I'm really tired.
Maybe I'm not seeing the big picture or I'm missing something... I just can't understand.