NMT Chapter 63: Padre Damaso Explains (See other Noli Me Tangere Chapter Summaries)
Maria Clara asked Padre Damaso to enter her into the nunnery (kumbento). Otherwise, she will commit suicide.
Padre Damaso did not want her to become a nun because life in the convent was going to be worse than life outside of it.
He cried and even told her that it's okay if she marries anyone.
But Maria Clara was adamant and insistent about entering the nunnery.
Padre Damaso cries out to God, begging that whatever punishments should be meted out to him, and that his child (Maria Clara) be spared.