I know stages. So many stages that I now know that the last stage of anything usually means it’s either blooming or dying. (There’s no sugarcoating in the human experience.) The extent of some physical invasions by diseases can be classified by stages nowadays. Neat. It doesn’t mean it makes things easier. I think it’s our human nature to not want to know what lies ahead — I blame the fear of the unknown. But it can’t be a bad thing either knowing how you’re going to end. Anyway, all this preambling is just to ask: does heartache have stages? We are well aware of the stages of grief (denial,…