There is no requirement that violence or the threat of violence be part of the harassment. In R. v. Sillipp 1995 (Available at CanLII) the judge in defining harassment said…”In my opinion, the most appropriate synonyms are those which imply being tormented, troubled, worried continually and chronically, being plagued, bedeviled and badgered”.
There is no requirement that the accused act violently (although they may) however, it IS a requirement that the actions of the accused cause the complainant to “fear”. Insulting a person would NOT qualify as harassment.
See Related Link to Element of “Fear”