Don’t pretend to be strong, become strong!
Did he leave you for another woman? Did he leave without an explanation? Did he leave you in the middle of nowhere, in the middle of the night? Did he cheat on you? Did he never look back? Did he hit you? Did he mentally damage you? Did he take away everything you had and leave you with a broken house and no where to go? Did he lie? Did he stab you in the back and tell you he loved you? Did he console you and hurt you at the same time? Did he swear to never leave and not come back tomorrow? Did he not take a stand for you? Did he choke you till you learnt to be alive while dying?
What did he do that got you here? What was it that made your chest ache and throat dry because if he did do any of these things, I wonder why you let him affect you even today.