I wasn't trying to make it personal, and your situation does sound unusual; sometimes the stay-at-home partner ends up working more hours than the breadwinner spouse, who might work 40 hours at the workplace and do nothing at home. That doesn't sound like it was the case for you when your wife wasn't working.

I would be quite displeased indeed if my generosity in marriage is taken to mean I would be so generous after being ditched.

I would say to anyone on the default marriage contract, there may well be spousal maintenance in the event of divorce, so if anyone thinks that's unfair, draw up your own agreement.