Slander (def.): Also known as oral or spoken defamation, slander is the legal term for the act of harming a person's reputation by telling one or more OTHER people something that is untrue and damaging about that person  

Meaning you obviously do not know the definition of the word Slander, because saying these things directly TO you isn't slander, Slander is only if you tell them to OTHER people, try knowing the meaning of a word before you attempt to use it.  Also if what you say is Actual