My dr friend can't come by today now

His ex wife demanded he drive to pick up his kids out of town today, he wasn't supposed to leave until later & won't be back until Monday. Disappointed. Should I have known things never work out? I wish he would've let me know this morning when he started driving. He promised last night he'd be here today and that it was going to be ok...
Guess I'll take a valium and a nap now that I don't have to keep trying to stay awake waiting for him. I have 3 hours until have to be at my 11 yr old's game today. "Working from home" today...
A little more background on me, I'm a single mom of 3, 2 deadbeat dads abandoned them (and me). My 17 yr old son has bp & bpd issues, and kicked a meth addiction earlier this year. He's doing a little better now except for the dui a month ago, but he's back in school / independent studies and he started his first job this week, masonry, hard work, he's sore all over but proud of himself. I have to take him to court tomorrow! And my daughter to the probation drug test place on Monday!! WTF life? And I run a business, I feel so overwhelmed. Nap & Netflix time... it will be ok, somehow, it will.