Let's clarify the basic grammar ...
(1) 'gone' is an adjective, describing the fact that someone (or something) is no longer in a certain location. "You were gone" describes the person's absence in the past, "You are gone" describes their absence in the present. Examples:
> "I called your house this morning, but your mom said you were gone." [You were not there THEN, at that time.]
> Text message: "I just got to your house, but I see that you are gone." [You are not here NOW.]
(2) 'went' is the past tense of the the verb 'go', so it is not a word that you should confuse with 'gone' -- different parts of speech, different usage. Examples:
> "I called your house this morning, but your mom said you went out."
> Text message: "I went to your house, but you were already gone."