Three short lines, and the whole poem is a quiet admission: crying made the speaker feel good. There's no story around it, no explanation of what caused the tears. We're only given the aftermath, and that's what matters.
Most of us treat crying as something to be embarrassed about or to get past quickly. The speaker says the opposite, plainly and without fuss. The word "good" is small and simple, and it sounds honest because of that. It suggests relief, like setting down something heavy you've been carrying for a while.
The line breaks slow the poem down. "Crying made" and "me feel" each hang for a moment before "good" lands alone on the last line, almost like an exhale. The mood is calm and gentle, maybe a little surprised. Nothing is dramatic here. The poem simply lets a small truth stand: sometimes letting the tears come is exactly what you needed.