"What most parents want during visits home is a chance to take their child’s emotional temperature in ways that can’t happen in text messages or even video chats."She does not want to be the interrogator, yet still wants to get a sense of her son's "emotional temperature." Inevitably, the relationship between her and her son will have changed from the time they last saw each other -- hopefully in a positive way. She claims that parents may feel conflicted in how to deal with the young adult that has come home for a temporary stay. The goal would be to find that perfect balance between giving space and catching up.
So I guess we can ask ourselves related questions at this time of our college career, as we can see the contrast between our college home and 'actual' home. Are your parents treating you differently? How much have you changed or grown?