What happened to Echo in the end?

Answer 1

Echo used to distract the Goddess Hera while her husband Zeus cheated on her whit other nymphs. When Hera discovered this, she was furius and punish Echo by taking away her voice, except in foolish repetition of another's shouted words. Echo were therefor only capable of repeating someone else's words.

At some point Echo sees a young man in the forest and follows him around. She wants to talk to him but off course can't speak first. Finally the young man (Narcissus) hears her footsteps and asks "who's there?" and Echo repeats "who's there?" - finally Echo shows herself to Narcissus, but the young man turns her down.

Heartbroken Echo spends the rest of her life alone in the glens pining away for the love she never knew, crying until all that is left of her is her voice.

Thus to this day we can sometimes still hear Echo repeating our voices, or so the tale says.

Answer 2

Echo was somewhere else and Narcissus died and their grew a flower where Narcissus died. the flower was called Narcissus.