My ex's adult daughter lived with us. Failure to launch. She still lives with him. It was a nightmare . He in fact relapsed when she started her antics ( recovering alcoholic). It was terrible. Just terrible. I wonder if she maybe was telling people that she lives with dad and stepmom because they need her lol when in reality she just refused to grow up.

My ex was miserable but every time he suggests she grow up she acted vicious and hysterical.

I wonder if this guy lives with parents because he doesn't want to pay rent or take responsibility but tells people his parents need him. If I was you I'd go to their house and meet them and see what's going on myself