And yet, by heaven, I think my love as rare
As any she belied with false compare.
His lover isn’t some ridiculous dream-creature; however, he loves her and sees her as beautiful nonetheless.
“She” here is synonymous with “woman”: “As any woman belied by a false comparison.”
Alternatively, the last line could be glossed as: the speaker’s perhaps not perfectly beautiful love proves despite her imperfections that the speaker has been making inaccurate and false comparisons. The line could thus be read as a meta-textual statement, a statement that contradicts or cancels everything that has been said before.
To help improve the meaning of these lyrics, visit "Sonnet 130" by William Shakespeare and leave a comment on the lyrics box