What is the purpose of writing sonnet 130?

3 answers

The "message" of a sonnet is always found in the couplet at the end.

"And yet, by heaven, I think my love as rare
As any she belied with false compare. "

Shakespeare spends the first 12 lines describing his love in what kind of terms?
Harsh terms
Maybe harsh, but I think he sees her realistically,.... so what is he saying in the last two lines.