What makes someone 'high maintenance'?

Quintessence
What makes someone 'high maintenance'?

What do you consider high maintenance when it comes to a date or potential partner?
Is it based on behavioural traits, or do you judge it mostly from appearance?

This term seems to be thrown more often at women, but I think it could apply to both genders. Thoughts?
What makes someone 'high maintenance'?
35 Opinion