hmm.. actually this is a bad habit leh..
dogs usually follow who their owner are.. expecially for ur case
where she is new to the environment.. think she is more comfortable
with ur landlord..
now u have to spend more time with her.. play with her.. make sure
u are the only one who feed her with food..
rem dun feed her with treats & human food.. cos shih tzu are
very prone to skin problem. just feed her with dry food will do, if
not, next time she wil be very particular about her food. dont
worry abt the nutrient level cos they usually have more nutrients
than if u were to feed her with human food. or u can go to pet shop
and buy her some supplement too.