Is jealousy good or bad?

i think jealousy is in our inner-selfs, we can or can't control it. i guess in human relationships, to love someone enough to desire to keep them only for yourself would be the highest compliment possible, but it has to be balanced with the realization that we can never fully possess another human being. So, it's a paradoxical situation - which is inherent in love.

a little bit of jealously will be nice LOL it shows that my bf cares for me..but it must not be over the limit where he question every move i make, everywhere i go...

jealousy = no trust = bad in terms of a relationship