Duet, being childless, i am woefully unqualified to give you much comfort here, but since it is so late there is probably noone else around, I'll give it a shot.
He is probably fine. It sounds like he is not an addict or anything so he is probably hanging out with his friends. does he have a curfew? I know I worried my parents sick when i was a teenager. Many times i rolled in when they were having thier morning coffee. Maybe he met a girl?
I guess you feel paralized maybe because like you said, you used to wait up for the H over and over and this feels kind of like that? That is one thing I can relate to as well, sleepless and worried waiting for the exabf to come home.
Well, I'm sure he will come home ok. Meanwhile maybe you could take a tylenol PM or something like that to help you sleep?
I can imagine how stressed you must feel.
you cannot control the situation, though, unfortunatly.
Maybe when he comes in you can make him scrub the floor...that's what my mom used to do!
I hope he comes home soon so you can have some peace of mind!
((((hugs))))
Lisarae