Alex Danvers, Supergirl
Alex Danvers (Chyler Leigh)
Alex is the adoptive sister of titular character Supergirl (Kara Danvers). She is a doctor and scientist who works in the D.E.O. Department of Extranormal Operations, a government organization dedicated to monitoring aliens and metahumans. She is also well trained in combat.
In season 1 Alex went on a couple of dates with recurring character Maxwell Lord (Peter Facinelli), because of her work with the DEO. In season 2 however, Alex told her friend that she hadn’t gone on a date in two years confirming that she didn’t consider those dates anything else than work assignments.
In season 2 she works in close relationship with regular character Maggie Sawyer, a detective in the National City Police Department’s Science Police. In episode 5 Alex started to question her sexuality when she learned that Maggie’s girlfriend had dumped Maggie, and at first denied being gay, but at end of the episode she came out to Maggie.
“My whole life has been about being perfect. […] But the one part of my life that I’ve never been able to make perfect was dating. I just never really liked it. I mean i tried, you know I got asked out. I just never liked being intimate. I don’t know I thought maybe that’s just not the way that I was built, it’s just not my thing. I never thought that it was because of the other […] Now, I can’t stop thinking […] that maybe there’s some truth to what you said.”
In 2×06, after Alex came out to Kara, she kissed Maggie who rejected her and offered to be her friend instead, which made Alex regret her coming out and expressing her feelings towards Maggie, before Kara made her feel better at the end of the episode.
In 2×08, Alex came out to her mother. At end of the same episode, Maggie appeared at Alex’s apartment with pizza and told her she realized that life was too short to not kiss girl she liked and they kissed.
Alex and Maggie become a couple starting with season 2 episode 9, with Alex officially calling Maggie her girlfriend, and they had short story arcs and scenes together as a couple in every episode after that (between 2-5 minutes). Alex introduced Maggie as her girlfriend to the group (2×12), and her parents (2×14). They celebrated Valentine’s day together (2×13), and exchanged “I love you”s (2×19).
In the season finale, Alex proposed to Maggie, and although we did not hear her say yes, Maggie’s smile implied she accepted.
There is a noticeable difference between the treatment of Kara and Mon-El, a heterosexual pairing between regular characters, and Alex and Maggie, a lesbian relationship between regular characters. Alex and Maggie get significantly less screen time, less on-screen intimacy and romance.
Episode 2×12, promoted by Entertainment Weekly as “Alex/Maggie centric Valentine’s Day episode”, focused instead on both Mon-El and his relationship with Kara. Unlike Maggie, Mon-El also gets more significant screen time, story arcs and development outside his relationship.
Supergirl was renewed for season 3, to air fall 2017. When the casting for Maggie was first announced prior to Season 2, she was announced as a recurring character, only to be promoted to series regular closer to the start of season 2. The character was continuously underused throughout the season outside of her relationship with Alex.
And after a full season building up the Alex/Maggie relationship, Floriana Lima was bumped down to recurring cast from series regular in Season 3.
Floriana Lima also tweeted after the announcement that the role of Maggie was only meant for one season.
- 42 episodes.
Female love interests:
- Maggie Sawyer (Floriana Lima, lesbian, regular)
Relationship story arc with a woman: Yes
No male love interests
Relationship story arc with a man: No
Male love interest after being identified as a lesbian? No
Filter Relationship Arc:
Storyline during sweeps? No
 A relationship story arc is defined as explicit, developed on screen, and lasting more than 3 episodes. It is listed as questionable or subtext if romance is only implied, mentioned instead of shown on screen, part of a dream sequence, or otherwise not explicit for the viewer.
 Sweeps episodes air in February, May, July and November, the periods when advertising rates are set. A character is marked as "sweeps" when there is a very limited number of episodes that address their sexuality, all air during sweeps period, and the storyline is otherwise ignore/dropped.