These lines in the love poem can be any shape (circular, zigzag, etc.). This is one way for the author to show his thoughts about love. Love Poetry is sometimes also contains only one word / syllable is repeated infinitely. read your own love letters and see how beautiful they are.
For the reader it is possible to make the poem becomes unintelligible. But the author always has a reason for all the 'strangeness' is created. No one wants to limit the writer in creating a poem. There are several differences between the old love poems and new love poetry. can you figure them out?