Hated Veteran Syndrome

Vet enters military service, possibly wartime, “goes to war”
Comes home sideways at everything considered “normal”
Grows his hair, maybe a beard, wears camouflage as normal fashion
Rejects the “system”
Speaks of topics no one understands
Pretty soon no one likes him any more
And he has only vets that will talk with him

This happens for good reason. You might want to ask a vet and learn why.