He is a loser because
a. he knew that her schooling would not happen if he let her move in with him
b. she is only 19 years old, and he lives with another guy as well
c. yes, he takes drugs
d. partying is a priority for him..not looking out for her welfare
e. he is pompous and flaunts the fact that his parents handed him his job, and figures their success will ultimately be his...even though I am sure they worked very hard for it.
Unfortunately, that stuff is what your daughter is willing to include in hger life.... it's not all that bad in her eyes. Keep in mind that your daughter accepts the situation for what it is.
All you can do is give her reassurance that you have a safe place for her to return to if she so chooses. I'm going through some things with my kids... I feel for you. Bite your tongue, for the most part - she'll either see the situation as a bad thing or she may want to remain in such a situation. Either way, it's painful thinking your child wants that stuff in their life... it's one of those "hurts" that just don't go away.
As well... let's hope she doesn't stumble across this thread - she'll be outright pissed!!