During the events of Selector Infected Wixoss, it is revealed that when a Selector loses 3 battles...
her wish is reversed. Hitoe, who wished to make friends, would therefore be unable to touch any potential or current friend without suffering from intense pain. She would also be unable to remember her friends or read any diary entry about them.
Interestingly, the very first episode of Selector Spread Wixoss shows Hitoe touching Ruuko without showing any signs of pain.
How is that possible?