"A wealthy businessman will have to pay more than $50,000 a month in spousal support for 10 years to a woman with whom he had a long-term romantic relationship even though they kept separate homes and had no children together, Ontario’s top court has ruled.Under Ontario law, an unmarried couple are considered common-law spouses if they have cohabited — lived together in a conjugal relationship — continuously for at least three years. But that doesn’t necessarily mean living in the same home, the court found..."