This is not uncommon among sexual assault victims.
So common It's one of the things people try to twist as evidence they aren't victims or it wasn't that bad.
It's often part of the abuse; like a battered spouse that stays or goes back. Blaming them for their reaction contributes to abuse.
Support don't judge.
Perhaps this is the root of the change you are seeing. They have entered the career stage of their lives and you have not.