In LLPSI Cap 19 we have:
Iulius: "Ille vir pessimus te dignus non erat!" Aemilia: "Recte dicis, mi Iulii. Tu solus amore meo dignus eras...'
Now I took it that this construction is just like: He to you is not worthy'..with 'dignus' agreeing with 'Ille'.
But then Aemilia says 'Tu solus amore meo dignus eras' which using ablative case is like: 'Only you, by my love, are worthy'... not sure what role the ablative plays here.
But we still have 'dignus' agreeing with the subject - Tu.
Then we have Cap 39 when, having received his praise and requests for help, Venus says to Aeneas:
"Equidem...tali honore me haud dignam puto".
Suddenly 'dignam' is agreeing, not with the subject (there isn't really a subject) but with the accusative object - 'me' (?). I've never really understood the grammatical construction of this concept of Ille te dignus non erat etc....
Can anyone advise?