domesticated, 
kept, tame, domestic, household, housebroken, trained
antonym: wild
 
favorite, 
preferred, special, cherished, indulged, beloved, dearest, precious, prized, 
dear  
animal, 
domesticated animal, tame animal, domestic animal, companion, four-legged 
friend 
sulk, 
huff, pique, temper, tantrum, tiff, miff (informal) 
favorite, 
darling, treasure, jewel, idol, beloved, apple of somebody's eye 
dear, 
love, darling, precious, dearest, sweetheart, babe (slang), baby (slang), 
sweetie (informal), honey (US, informal)  
indulge, 
pamper, spoil, coddle, mollycoddle, fuss over, cosset, make a fuss of 
stroke, 
pat, fondle, caress, nuzzle, rub