How the love percentage is added

Both names are stripped to the letters A to Z. The five counts, in the order L, O, V, E, S, are the first row. Each new row replaces every neighbouring pair with its sum. When that sum is 10 or greater it is written as two separate digits, so 12 becomes a 1 followed by a 2, and those digits join the next addition.

The loop stops at two digits. The first digit is the tens, the second is the ones. If a single digit is all that remains, that digit is the result. The addition is capped so a pathological row cannot run forever. Nothing about a person is stored, and the share link only carries the two names you typed.

This is the other notebook game, the one that ends in a percentage instead of a word. It does not read a birth chart and it does not read a personality. It counts five letters across the two names and adds those counts the way a column of figures is added on paper.

Alice and Bob, taken together, contain one L, one O, no V, one E and no S. The row is 1, 1, 0, 1, 0. Add each pair of neighbours and the next row is 2, 1, 1, 1, then 3, 2, 2, then 5 and 4. The percentage is 54. Run it again tomorrow and it is still 54. Change a spelling and the row changes, because a missing E is a different count.

A sum that reaches 10 or more is written as two digits, the way you would write 12 under a pair of figures, and the addition continues. The page shows every row, so you can redo it by hand. The number is not a chance of anything. Two people with no E between them are not less in love. They only failed to spell the word love.