Rondeau Redoublé
There are so many kinds of awful men —
One can't avoid them all. She often said
She'd never make the same mistake again:
A  rondeau redoublé  is a poem that “features a four-line refrain which forms the first quatrain. These four lines are then used successively as the last lines of the following four quatrains. The sixth and final stanza is a quintrain which contains no repetition of previous lines; it does, however, include a ‘tail’ which is the beginning clause or phrase from line one.”
Rondeau Redouble