Perhaps they lied because you're a person who can't deal with the truth.
"You want the truth? You can't handle the truth!" aaahhhh...clas sic line from "A Few Good Men"
Anyways, some people get lied to because they cannot be told the truth. But really it just all depends. Is it a lie or deceit? To me, one is a heavier degree than the other. I don't mind getting lied to depending on what the lie is but I cannot and will not put up with deceit. Deceit means that someone told me a lie which caused me to make a decision that resulted in a negative outcome - more importantly, the outcome negatively effected me.
Perhaps divulge more about why you're so upset. Tell us the situation and I'll tell you if you should stay angry or not.