Change in Household Membership The sudden absence of a resident family member, either due to death or moving away, can trigger the development of separation anxiety. (aspca.org)
Even if you feel ready to step away from your smartphone, you have to make sure all the people accustomed to reaching you aren't caught off - guard by your sudden absence. (inc.com)
«Last time... there was a sudden absence of somebody who might be supportive.» (politico.com)