The thing that really bothers me about this show is the fact that the word "bisexual" just doesn't exist.
Since season 1 we're wondering about Amy's sexuality and it's totally fine she hasn't figured it out yet. But in this episode Karma once again reminded Amy that she apparently likes boys as much as she likes girls. And the only word that ever comes up is "confused".
Why is the word "bisexual" so non-existing in every media? It's not even about defining Amy's sexuality. It's about the fact that this show tries to be different, understanding and open to everything (They added polygamy and monogamy, and they even included an intersexual character!), but in the end it's just about being gay or straight with nothing in between. Again.
Oh, and as a side note: I find it absolutely awful that the only actual lesbian (Reagan) is portrayed as bi-phobic. (But even SHE doesn't use the bad b-word!)