The speaker wakes beside someone who says nothing, and the quiet feels heavy. Because the poem is so short, we have to piece the situation together from small clues. "Her silence" could mean a partner who has gone cold, or perhaps a woman who is simply absent. The line "tired of being read by others" hints that the speaker feels looked at and judged, and wants some relief from it.
The strangest image comes at the end. Her body is "in my hands," yet it feels "as bland as a letter from sea." A letter from the sea sounds romantic and faraway, but "bland" drains it of excitement. Perhaps the speaker is holding something that should feel intimate and finds it flat, distant, or unreadable. It might even be a book rather than a person, since "read" and "letter" point that way, though the poem never says so outright.
The mood is lonely and drifting, which suits the title. Nothing is solid, and closeness doesn't bring comfort.