A 20 second hug can increase oxytocin levels. This is a good thing. Touch goes a long way to sustaining a relationship. Sex has a lot of benefits that go beyond regular touch, but it is touch which is vital. If there is no touching at all, get a cat or dog or something. People tend to feel more free when touching animals and small children, and it is probably better not to have children around if there is no touch between the adults.