Drew and Sadie had to live with the Peterson side of the family for a bit of while because their parents had something they had to be at overseas
and In that time(6-8 months) Drews personality did a 360 because he started to open up more to luke and missy and his mean personality went away because of lukes mom and dad shaped him into a better person
The 4 (Luke, Missy, Sadie, and Drew) went on a night walk one night and got lost in the woods and they all thought they were going to die so they are just sharing their deepest darkest secrets that the have never told anyone and luke recorded it (his phone didn't have signal to call someone) and drew deepest darkest secret was that he was a homosexual and he had a crush on a boy (Liam or jake prob)
(I just like to think the Peterson family homes is like a safe home for anyone how has a bad home life or if they need some to stay along if they know any of the grandchild (Luke, Missy, hunter, Caleb, Luna and mia))