Mental illness can be a dangerous thing, it can endanger the one who suffers from it, and endanger those around them. Irrational thoughts of the sufferer can cause irrational behavior in others.
In episode 8 of the Dorrick and TongSu series, Dorrick jeopardizes his relationship with TongSu to try and help a troubled girl who exhibts all the symptoms of a stressed out girl from back home, insisting that maintaining a career she can no longer carry out is the only way she can keep the luxurious home she loves.
TongSu's patience is tested not only by Dorrick's dalience, but by the isolation of a basin that hardly believes in the outside world. An isolation that seems silly until they find themselves in trouble because of it.