Meaning: If you are unlucky at games of chance or gambling you will no doubt be lucky in love. Proverbs and Sayings.
I have also heard this said in Spain, the other way around (ie. unlucky in love, fortunate at gambling).
It is often said to console those on a losing streak, whether in love or at games of some sort. Usually said with a hint of dry humour.
If this is so, then I’m owed a financial windfall….