In this excerpt from “porphyria’s lover” by robert browning, which lines suggest that the speaker doubts the depth of porphyria's love?

and spread, o'er all, her yellow hair,
murmuring how she loved me—she
too weak, for all her heart's endeavour,
to set its struggling passion free
from pride, and vainer ties dissever,
and give herself to me for ever.
but passion sometimes would prevail,
nor could to-night's gay feast restrain
a sudden thought of one so pale
for love of her, and all in vain:
so, she was come through wind and rain.

M read the sentence.what best describes the underlined part of the sentence,and why? alma plans to visit london and paris, where her parentswent on their first trip together as a married couple.it is a restrictive relative clause because it begins with arelative pronoun, has both a subject and a verb, and is notnecessary to the meaning of the sentence.it is a nonrestrictive relative clause because it begins witha relative pronoun, has both a subject and a verb, and isnecessary to the meaning of the sentence.it is a restrictive relative clause because it begins with arelative pronoun, has both a subject and a verb, and isnecessary to the meaning of the sentence.it is a nonrestrictive relative clause because it begins witha relative pronoun, has both a subject and a verb, and isnot necessary to the meaning of the sentence.