Love in its purest form: wife helps her blind husband follow their son's game, recounting each play with caresses on his back.
This is actually called protactile. It is a language developed for Deaf/Blind people as a way to describe what is happening around them. It is very cool and really helps these individuals live their best lives.
Some ask why can't she just tell him? He's blind, not deaf. This is a way of talking, it's a language similar to sign language but through touch. Talking is not always appropriate depending on your surroundings. This way, she gets to enjoy the game and not concentrate on verbally explaining every detail. I'm sure she was speaking to him as well. However, she gets to touch and be close to her man. What could be wrong with that? So sweet.