Ok I had to make a account to weigh in here. Usually I just lurk on forums but I just feel I need to talk about this show with someone. So here goes.
I liked this episode, even the final scene. That said, I can understand the complaints. I think this would have worked better as a mid-season plot point, rather than the finale, but that's the problem with such a short season.
I think some of you are underestimating just how drunk Liam and Amy were (I wouldn't be surprised if their memories are a little fuzzy the next day). Also teenagers are barely rational at the best of times, let alone when they're crazy drunk and overcome with grief. Anyway, obviously my opinion of the scene will depend on how it turns out next season (please let there be a second season), but I'm willing to give them the benefit of the doubt.
Finally here are a few other points that I don't believe anyone has considered:
-I'm not surprised Liam stayed. He drove there and can't drive now. Why go elsewhere to drink when he has a free and practically unlimited supply of alcohol right here. He also may have just wanted to talk to Amy (maybe to apologize).
-Amy and Liam probably feel a bond between them since they were both hurt and feel betrayed by Karma. Also Amy's the only one who wasn't lying to Liam.
-Amy may be trying not to be a lesbian (which I'm still confident she is). Her experience has been pretty terrible, her Mom just grounded her for two weeks just for dancing with Karma. Now that she's lost Karma she may feel that she should try to be straight to salvage her relationship with her Mom.
-Why Liam? Well first he was there. Second, he's the only other person she's felt any real connection with (also he may have felt something for her when they kissed). And finally, when Karma said she had sex with Liam, it was almost like she was using that as a reason for why she didn't have feelings for Amy. So maybe Amy figures it will work for her too.
