Season 1 Edit
They started hanging out as friends in The Persistence of Memory, where Emmett helped Bay discover who her biological father really is.
In The Stag Hunt, Emmett continued helping Bay to find her father and even goes as far as going with her and Daphne to the night club where they thought he worked. Daphne grows suspicious and asks him if anything was going on between the two of them. Emmett assures her that nothing is going on, but later goes to Buckner Hall and confesses to Bay that he likes her and kisses her, leaving her speechless and shocked.
In Pandora's Box, Bay goes to Carlton to see Emmett and starts wondering if he's just using her to get to Daphne or if he really liked her. He asks her if she's finished, and when she says that she is, he kisses her again.
Later, they're making out in the park and Bay asks Emmett about a few words in sign language. Those questions lead to Bay asking him if he ever speaks with his voice, to what he answers that he doesn't need to. Bay reminds him that she's still learning sign language and she was wondering if meanwhile, he could try to speak with his voice. Emmett seems visibly uncomfortable, so Bay asks him to go back to kissing, since they do that really well.
Bay and Emmett go to his house, where Bay is surprised by lots of pictures of Daphne. He assures her that they are just friends and even goes as far as almost breaking a picture of Daphne. She believes him until she tries to tell him about her art, but can't because Daphne is calling Emmett repeatedly. She leaves the room, not without reminding Emmett to take his camera so that he can take more pictures of Daphne.
Bay turned to him for comfort at the end of the episode, when she found out that Regina knew about the switch for a long time. She realized that he couldn't understand her so she almost broke up with him, but he pulls her back to him and comforts her.
In Paradise Lost, Bay confesses to Emmett about her street art. She tells him that her dream is to tag a billboard so that everyone can see her art. They hang out at his house and Melody finds out about it. She's worried that they won't communicate properly due to Bay being hearing and Emmett being deaf. She doesn't look happy about her son hanging out with a hearing girl. He expresses his interest in taking up speech therapy, which Melody isn't thrilled about and blames Bay for all the changes in Emmett's behavior.
Later, they try to achieve Bay's dream of tagging the billboard, but are unsuccessful. While escaping from the cops, Bay hurts her hand and Emmett hurts his side. Melody notices that both of them have been hurt and questions Emmett about it, expressing her disgust for Bay. Bay sees this and Emmett assures her that Melody will like her, but Bay points out that it means that Melody doesn't like her now.
Bay opens Emmett's gift and finds a scarf, which is nothing compared to Daphne's gift, which is a poster of Deafenstein, an ASL movie. Emmett later waits for her in her art studio and tells her that it's not a scarf, it's a blindfold. He guides her to the billboard, where she sees that he tagged the billboard for her with her art. He apologizes for not telling Daphne about them. They decide that Bay should tell Daphne about them being together.
However, when Bay returns to the house to tell Daphne about Emmett being in a relationship with her, Daphne confesses to her that she figured out that she has feelings for Emmett. Bay doesn't tell her about her relationship with Emmett.
In The Homecoming, Daphne and Emmett plan a fundraiser for Carlton and Daphne figures out that Emmett is dating Bay when she sees pictures of Bay in the walls. She confronts Emmett, reminding him that he said that he would never date a hearing girl. He angrily tells her that he likes Bay, causing her to leave the room.
Emmett helps Bay make a decision about whether to meet with her biological father when he comes to her art show.
Daphne confesses her feelings for Emmett at the Kennish Car Wash and they share a kiss, but he pulls away and tells her that he's with Bay. He starts to question her relationship with Bay and breaks up with her after he realizes the communication barriers they have ahead of them. Toby hears about this and confronts Emmett, telling him that Bay is sad because of him and that he shouldn't treat his sister like that.
Later in the episode, he tells Bay that for him, she wasn't hearing or deaf, she was just Bay, and that it would be easier to find a deaf Bay, but he doesn't want that. He speaks to Bay with his voice and tells her that he just wants her. She hugs him, crying, and they get back together.
She gives him a gift for her drum and they share a kiss before he gets on the road with Guitar Face, Toby's band to a festival. Daphne later informs Bay that she isn't done trying to get Emmett.
In Starry Night, Bay is annoyed when Daphne joins Emmett in the Guitar Face festival. She decides to go too, but she doesn't understand why Emmett doesn't want her help defending himself and he doesn't like her using his deafness as a defense. He explains to her that people shouldn't be uncomfortable around him and that he always finds a way to get by, he also expresses his dislike towards his hearing girlfriend defending him, using Daphne as an interpretor. Bay expresses annoyance at the fact that they need Daphne sometimes, and he replies that someday, they won't need her. They cuddle, leaning on a rock, and watch the stars in the sky.
- Emmett is the best listener Bay knows.
- Emmett used to say that his perfect girl had to be deaf, but since the beginning she wasn't hearing or deaf, she was just Bay.
- They are both artists.
- Emmett said that Bay was his perfect girl when he met someone who had all the qualities he likes in girls.
- He gave her private ASL lessons in Season One.
- Bay was the first hearing girl Emmett dated, followed by Skye.
- It is implied that they have twins together in The Image Disappears, when Bay passes out from donating blood and has a dream where she's giving birth with Angelo by her side and when she wakes up, Emmett is there.
- Emmett implied that Bay is the one for him in his speech at Toby and Nikki's wedding, when he meaningfully looks at Bay.
Emmett (to Bay): Soon, everyone will love you as much as I do.
Bay: Did you just say "Are we going to fall out of love?" ... Meaning we are currently...
Bay: I'll get to say that I knew him. He was my first love.