You did the right thing.
Some years ago i liked this girl, but my friend warned about her (i were already in a relationship with the girl). I don't remember exactly what he said.
I didn't really believe him at first, but then he showed me a conversation with the girl where she was saying something about "See the facts, i love [friend name], [other friend name] and me".
I'm not saying that it has something to with your story , but anyway
Since then i've been more carefully about going into relationships.