The cruel beloved now kisses my lips thinking that once my lips are stitched shut, I will no longer be able to lament or cry out.

At first glance, a kiss on the lips looks like a tender act of intimacy, but here it carries a deliciously cruel irony. The beloved isn't offering affection out of love; rather, they are sealing the lover's lips shut with that kiss. By silencing the mouth with sweetness, the tyrant ensures the lover can never again complain, protest, or cry out in pain.