Yea, just read the latest omake chapter that if she thought you were a family then you can touch her safely, meaning she would stay touchless until she got married. Then again the author doesn't specify whether she should perceive it naturally or if she could forced perceive it
Honestly, glowing would be a really practical power. You never have to worry about getting lost in the dark, you can use it as a sort of beacon if you get lost, you'll never need to worry about your flashlight being out of battery, &c.