I Hate Liars

So there was this guy who kept on messaging me everyday. Out of respect i answered him back and we had a great conversation actually,for a quite sometime now it feels like he is starting to flirt with me so I ask him what is his plan about us. He said, he is just bored and just need someone to talk to. Due to my instinct i started to search about him, and that's when i found out that he is in a relationship. He lied to me. I confronted him and he was sorry telling me this and that. I just wasted my time for someone who is not honest with me from the very beginning. I feel sad about it, i was truly honest with him and all i get is a bunch of lies.