its like: te quiero

Hab Dich lieb is a much milder and less direct form of Ich liebe Dich (te amo). Like "I think you're really nice". I think lieb in this context relates to the adjective meaning "sweet, kind or dear" and not directly to the verb lieben, although the former is obviously a derivative of the latter.

Si "Hab dich lieb" significa lo mismo que "Ich liebe dich" entonces la traducción seria : "Yo te amo" o simplemente "Te amo"