Cancer patient

Hello everyone,

Please be gentle with me, I'm in a tough situation. I'm 33(F), diagnosed with stage 4 cancer. My common law partner and I are heading for a split unfortunately. He completely stone walls me, doesn't engage, communicate, come to appointments with me, ask about my treatment, doesn't talk to me etc.

I am originally from Europe and now a Canadian citizen. My partner and I have been together for 7 years and we have been living together for 6 years. We rent an apartment in Toronto, and do not own any assets (he owns a car). Due to the high cost of living in Toronto if he moves out I cannot afford to pay my rent and bills alone as I am on CPP-D and disability pay from work, I make about $2700 a month after tax and my partner makes about $100,000k a year before tax.

I do not want to get a roommate as I am undergoing different types of chemotherapy and clinical trials for the foreseeable future.

I am on his benefits so if we split I would be losing out on all his benefits plus the $6000 that I get a year from his benefits for therapy.

One thing to note is that we have only filed our taxes as common law partners the past 2 years, we just kind of never got around to filing them together, would this be an issue?

Can anyone provide in simple terms if I am entitled to any spousal support if we split? Or am I entitled to anything at all? I just need to make my life financially easier as I am so stressed out thinking about paying rent plus my diagnosis.

He has lots of stocks and shares if that means anything.

Thank you for your help.

EDIT: Thank you everyone for the information and Links and resources, I will look them all up. I was going to delete my post for fear of doxing myself but I will leave it up as unfortunately my situation is not a unique cancer patient experience.

Take care everyone!