high-maintenance

adjective2

1. •
   Requiring a high degree of maintenance to ensure proper functioning, and without which it is likely to break down.
2. •
   (figurative) 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.