Can someone help me?

I think that the most important thing is to comfirm one thing: do you like him?

If you don't, you may keep a distance from him, not to give him some misunderstanding.
If you do so, you may chat with him through some medium such as MSN, and see whether he is care about you or not. If you know him very much, you may try to test his sincere. Maybe you can also take notice of his action, is he always keeping an eye on you?

But you should be reminded that not to take any action unless you make sure that he loses his heart to you. I believe that you can feel it.

Hope that my answer can give you some help ^^

Do you like him? If you do, ask him if he's lying or not. If you don't like him, the smartest thing to do is to tell him to back-off / get lost. Please remember the things I'm telling you know are from Canada.

Judging from the sad face at the end of your question, I can tell you already liked him.

As for how you can find out the truth, well, we really don't know what happened, so its best you give us a better picture of the story before anyone can start contributing.

you can test him , but do you like him？