abandono a persona 78 a

please direct me I am 78 y old now., started a relationship with a Franco / Canadian man in 1993 , Several years later , he sponsored me to become a resident of Canada , thus economically dependent on him. 2001 21 Jan we got married while in Mexico and after some time I became citizen of Canada In 2005 , while I was in Mexico for several months , he installed his mistress in our home , with the complicity of neighbors and his friends . When I discovered it , while still in Mexico, she left our home and he joined me in MEX, but they continued the exchange between them . I felt like suicide...but i just couldn't throw away 15 years of investment , IT wans't easy but we continued Since the beginning of July 2019 he left for France for ONLY two weeks to assist his aging father , while he recovered from an eye operation, His father felled and died at end August , He refused that I accompanied him during the duel alleging he would like to pass through the pain alone, but later I found out several of his friends joined the funeral and there was a big gathering. Mean time behind my back he sent a message to our neighbor friend telling her to not insist that I accompanied him during the duel , He inherited a big sum of money and stayed in France, I have never seen him again. But lately I discovered he is living with his mistress who has been his acquaintance for several years now and assisted the funeral with the family and friends complicity I have no income since most of my affairs in Mexico suffered when I emigrate to Canada , some irremediably lost. My husband touches his Canadian pension + an amount designated to my support which I have never seen Whatever he produced in the past goes to maintenance of his properties ( we are married separated regimen) . also goes to his investments in the bourse , and to his REER , so basically I get just house support , nothing is given to me as allowance, Is there a Montreal gov office I can contact ??? Rachel