Shes 20 and she thinks its normal to wear nappies and play with dolls. we have been going out for a couple of years and lived together a year. i only got to know about this when we moved in together. at first she wasnt as bad and i turned a blind eye to it. but now its becoming more obvious and she wears nappies all of the time. she also tryes to act like a little girl. does anybody know why she does this?