Sal,
Angstrom,
The law regarding common law relationships came as a result of dead beat men, who lived with, but didn't marry their long time partner, maybe even having a couple of children together... Back in the day, when more women played a supporting role in the relationship, they often sacrificed their career and ability to earn a decent living to put their man through post secondary school, raise children and look after the home. All too often when the man was at the peak of his career and the couple should be enjoying the fruits of their joint efforts, the man would toss the woman on the street. If they weren't married or they are living in Quebec, she'd have no recourse. The spouse with the big job would reaps 100% of their joint efforts, often having exclusive title to the family home. The spouse who slaved and sacrificed would be screwed her out of secure retirement, despite the supporting role.
In such cases, I totally agree with the law, which requires the spouse with the greater income to support the spouse with the lower income.
But if the spouse never contributed in a significant way to the other spouse's success as appears to be the case in the OP, then I agree with Angstrom.