Cowboy?
Slow down, gambler.
If you wanted to make it a balanced statement, you would be looking for someone within your own league and not for someone "much younger".
Do you seriously want to say that your state would be all intact 20 years from now?
And putting someone who still has more than half her life ahead of herself at the mercy of health insurance and condemning her to becoming a widow within the reach of her foreseeble future is egoistic beyond measure.