Some people are a super nova of social energy. Like a swarm of puppies contained in the soul of a single person, they just have to meet everyone and be their friend. They're beloved by all and are sought out by head hunters for jobs.
But that's worst case scenario. Don't get me started on a depressed/anxiety/introvert. Or Angstdropert.
A depressed introvert has finite emotional energy and in relationships that are emotionally depreciative a deprovert will inevitable withdraw for their own emotional health.
Dates are as bad as interviews if not worse because, as I mentioned in previous posts, the side effects can be guilt ridden.
At the beginning the deprovert is hopeful, engaging, throwing themselves out there trying to make it work.
This is the Black Hole of dating, emotions get sucked right out of a person and never return. They are slowly regrown or nurtured back by supporting loved ones. (Warning, encouraging more dating before a deprovert is recovered is as good as sticking a vacuum hose up their nose and sucking out what little energy they recovered. They need your love more than suggestions.)