"Looking up at the stars," the speaker of "The More Loving One" does not see what poets often do. To this speaker, the stars don't symbolize fate or love or the watchful eyes of the gods; there's no pattern up there, no order, no affection. "For all [the stars] care," the speaker feels sure, "I can go to hell."
In just these first two lines, then, readers learn a lot about the speaker's dry, ironic perspective on the relationship between humanity and the universe. To this speaker, the stars have nothing to do with people and nothing to say to them.
Declaring that the stars don't care a whit for stargazers, the speaker seems to feel that the world lacks inherent meaning or guidance. However, the speaker isn't going to make a big deal out of this vision of cosmic indifference. A different sort of person might bewail the horrific emptiness of a universe without meaning. This speaker's offhand, casual, slangy tone makes it clear that they see the unresponsive stars as a mere matter of fact, something that one "know[s] quite well." No sense in making a fuss about it.
In fact, the universe's indifference might even be a little funny. Alongside the comical "for all they care, I can go to hell," the poem's structure works a lot like a joke's. Each of this poem's four quatrains is written in couplets, every pair of rhymes hitting like a setup and punchline.
However, as readers will soon see, this poem's ironic wit becomes a vehicle for deep feeling—and for a serious philosophical question. How, this poem will ask, ought a person to live in the face of cosmic indifference?
Well, first of all, the speaker goes on, there's no reason to especially fear indifference; it's "the least / We have to dread from man or beast," far from the worst thing in the world. The understated reserve of this line invites readers to consider what the worst we have to dread might be. The notion of what "we have to dread from man or beast," in particular, might suggest a dreadful beastliness in both humanity and nature: plain old brutish violence.
The juxtaposition of indifferent stars and the fear of "man or beast" hints at a dark unease. For all that this poem's tone is light and wry, there's another serious question implied here: if the heavens aren't watching over humanity, what will keep people human?