Marriage is an excellent cure for infatuation.
It is also a test whether the infatuation was something more. If the marriage lasts and deepens, then it was; if not, then it wasn't.
To be infatuated is to be rendered fatuous, silly. Not that infatuation is all bad. A love that doesn't begin with it is not much of a love. The silly love song That's Amore well captures the delights of love's incipience. But fools rush in where wise men never go/But wise men never fall in love/so how are they to know?