But Lexa stated it was for the other night bloods in the conclave.
There were nine participants in Lexa's conclave, but only seven circles on her back.
We've never seen Trigedasleng written anywhere and it seems pretty clear that they're an illiterate society, the exception presumably being the Flamekeepers since in this season we saw Gaia reading Becca's notebook.
Lexa thought that love was supposed to set her free.