Does anyone find it quite weird that he got worried about her quite soon and called lots etc? My Dh wouldn’t think much of it if I was back later from a dog walk. He’d think I could’ve nipped to the shops, seen a friend etc, maybe that’s just us!
I don't think it's panicking. I finish work at 5, am home by 5.40 every day. If I wasn't, I think I'd expect DH to give it 15 before 'worrying' or calling me. If no answer, then yes I might expect he would go walk the route I take.
Similarly, if I decide to pop to the shops on the way back I will text and say off to X, be a bit later than normal, do you need anything? and vice versa.
Sometimes you get a gut feeling as well, that all is not well, sadly.
It all depends on their habits and what is normal for them.