The Friar' meenger doe not have time to reach to Mantua (where Romeo ha gone becaue he wa banned from Verona) to inform Romeo of hi plan becaue Juliet' wedding day ha been moved forward by one day by her father. So, when Romeo hear from hi ervant that Juliet i dead, he ha no idea that he i only under the influence of a trong leeping pell and not truly dead. He dahe back to Verona and commit unalive before the potion wear off