Is obsessing over things related to real life like social ties, money, career, or anything else that will surely pass after you die a disorder? If it isn't then why not?
"experts in psychology and financial planning say the number of professionals offering to treat money disorders has multiplied in the last few years." https://www.nytimes.com/2008/09/25/health/25iht-25money.1647... As for career, workaholism is certainly considered a dysfunction.
Workaholism is praised by our culture. In fact, it's probably necessary for capitalism to function at all. Without that societal impetus I imagine everything would crumble.