It made our lives chaotic and unstable: promises being made and constantly broken, their fighting, the weight of their secret -- the weight of our secret kept so much so-called "normal" out of our lives.
lo cual tornó nuestra vida  caótica e inestable: promesas que nunca se cumplían, discusiones, el peso del secreto entre ellos, el peso de nuestro secreto excluía todo lo "normal" de nuestras vidas.