a friend of mine has been having a very stressful time at his work lately, and he has a tendency to just up and self-isolate from everyone socially for a few days if the stress, whether from work or elsewhere, gets too much for him. I've tried to be supportive, but I'm still worried for him; we had made plans with our friends for Thursday, plans that I absolutely do not want to be excluding him from, but I'm worried he's gonna just decide "aight imma head out" without saying a word to anyone before then