Dani (Demi Lovato) was introduced as a love interest for Santana in the episode “Tina in the Sky with Diamonds” in Glee’s fifth season. After Santana told Dani about her relationship with Brittany, Dani thought it was time for Santana to be with “a 100% sapphic goddess” and the two sang a duet together and kissed in their first episode. They began dating, and Dani joined a band with Santana and her friends. However, the relationship saw no further development after their first episode together and was limited to background interactions for the remainder of Demi Lovato’s run on Glee.
Their break-up was not shown on-screen, though in episode “New Directions,” Santana was shown choosing a future with Brittany, effectively ending her relationship with Dani.
- 4 episodes.
Female love interests:
- Santana Lopez (Naya Rivera, 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.