In just two lines, the speaker thanks someone who changed the meaning of their darkest writing. Suicide notes are the last words of a person who feels they have run out of reasons to stay. The speaker says that this other person somehow turned those words into love letters, as if the pain was still there but now had somewhere to go, and someone to be addressed to.
The time stamp matters. Three in the morning is when loneliness and dark thoughts often feel loudest, and it is also when the speaker feels most thankful. The gratitude seems tied to that vulnerable hour, when the memory of how close things came is sharpest.
The mood is quiet, raw and tender. The poem doesn't explain or dramatize; it simply states what happened. That restraint makes it hit harder. It feels like a private admission, relief mixed with lingering fragility, and a plain, heartfelt thank-you to the person who helped.