I'll add too..my 'step son'..his mother and I never married,but were together for years(I raised him)...Looking,back now..I could see the fear of the addict in his eyes when she'd almost be home,but I was also an addict..the "cool one"..So,her daughter could be kinda reaching out?..again.. I have zero perspective on your alls lives..just a thought.. Teenage years are CRAZY for any gender!! So walk gently!