Empty nest syndrome
Raising kids can be strangely both distancing and bonding for parents at the same time. Parents do, at least have, a shared goal (the successful rearing of their children). They share something they both care about deeply and would do anything for. That’s a special connection only parents have with one another. So, when all the kids go off to college and leave the nest, the thing that kept that connection alive is…gone. And that can cause issues.