high-maintenance

adjective

1. 1

   Of a system: requiring a high degree of maintenance to ensure proper functioning, and without which it is likely to break down.

2. 2

   (of a person) requiring a lot of attention or reassurance; emotionally needy

   “He has this incredibly high-maintenance girlfriend; if he doesn't tell her that he loves her every five minutes, she tends to break down into hysterical depressive weepy fits.”