1) Adorant 2) Adoring 3) Affectionate 4) Ardent 5) Avid 6) Dedicated 7) Eager 8) Faithful 9) Fond 10) Helpful 11) Inspired 12) Keen 13) Loyal 14) Obedient 15) Obsessive 16) Passionate 17) Pious 18) True 19) Zealous 1) American young adult novel 2) Ardent 3) Ardent, devout 4) Committed 5) Completely committed 6) Dedicated 7) Enthusiastic 8) Fanatical 9) Keen 10) Like some servants 11) Loving 12) Lovingly loyal 13) Loyal 14) Staunch 15) Totally loyal 
• (imp. & p. p.) of Devote • (a.) Consecrated to a purpose; strongly attached; zealous; devout; as, a devoted admirer.
De·vot'ed adjective Consecrated to a purpose; strongly attached; zealous; devout; as, a devoted admirer. -- 
[adj] - zealous in devotion or affection
zealous or ardent in attachment, loyalty, or affection: a devoted friend.