One thing I came in mind about the cliffhanger and for me, it would kinda make sense. So I present my scenario of what could possibly be even the plot for S3.
The person behind the doors is one of Benji's parents. Benji is actually somewhere out and drinking, because his heart is broken (I think that Venji break up would be something that would trigger Benji's alcoholic self; plus I don't think that Benji's sobriety attribute was given to him just to break up Venji and that it'll actually be the integral part of S3). Victor and Benji's parents will go find Benji and they find him drunk. In the first episode Victor would tell him that he loves him no matter what but Benji will struggle because he is disappointed by himself and that he drunk for nothing because Victor wanted to come back to him. But at the end of E01 they will reconcile. From now on, Benji will go again on his sobriety journey with Victor being now the supportive partner (in the previous season it was Benji, who was supportive and who let the other one to deal with his family problems. Now is the time to turn over, so that Victor would be the "responsible and patient" one. Which also makes sense after his conversation with Simon, where he kinda showed that he grow up and is ready to take things more serious. So, to continue with my thoughts on plot, Victor and Benji will be happy together, but Benji's sobriety won't be easy and probably seeing Victor talking to Rahim in the school (btw, they would agree to be just friends) will be some kind of trigger for him, so he would secretly drink a little of alcohol and later on this whole fact about Benji being alcoholic will come to the light (he probably will do again something stupid as he did in the past when he drove through Wendy's).
For me, this whole makes sense, because we won't be focusing on Victor's troubles in their relationship, but Benji's, this whole sobriety and AA thing has to be something more due to the fact that they started to talk about it in S2, but was not properly examined and it would again give the creators another level of mature storytelling - the relationship with one person having drinking problems. It seems to me as a very possible scenario. Is there somebody, who agrees with me on that?
