The events of "Crisis on Infinite Earths" may have a catalyzing effect on the budding relationship between Alex Danvers (Chyler Leigh) and Kelly Olsen (Azie Tesfie) on Supergirl, Tesfie says in a new interview. At the start of the season, Tesfie says that things are good, but apparently a little slow-moving, between her character and Leigh's, but that will pick up once Kelly works through some issues of her own -- and apparently after the events of "Crisis" shake up the multiverse in December and January. The crossover saw the death of Kara Danvers/Supergirl in the comics, and while that is not likely to happen on TV, it was foretold in the Book of Destiny -- something that Oliver Queen (Stephen Amell) and The Monitor (LaMonica Garrett) will spend some time on Arrow trying to prevent.

Supergirl returns tomorrow, airing its premiere after the series premiere of Batwoman on The CW. You can check out a clip from the premiere, which introduces new baddie Midnight, here.

"Kelly and Alex haven’t said 'I love you' yet, but they they grow in their relationship," Tesfie told TVLine, adding, "The crossover is chaos, and I think amid chaos everybody kind of shifts and changes."

Per the report, many of Tesfie's scenes in the first half of season five are actually tied into her own side story more than her romance with Alex. Apparently she "gets pulled into the Black Mirror-like storyline."

"She thinks tech is for good, and it ends up putting her life in danger," Tesfie said. "She misses seeing the bad in a lot of people this season."

Supergirl returns with its fifth season in October on The CW. Facing a new threat and featuring a new costume, Kara Danvers (Melissa Benoist) and her team of allies will square off with Leviathan — bringing Supergirl closer to synching up with the comics than almost any show in comics history, since Brian Michael Bendis is writing a Leviathan-centric event that finds a lot of its story core in what he has been doing with the Superman titles right now.

At the same time, the first half of the season will build toward the massive CW-wide “Crisis on Infinite Earths” crossover, which adapts the storyline in which Supergirl and The Flash died in the comics. It seems unlikely that will happen on the TV version, but that does beg the question of how they manage to outrun their destinies, and what the Arrowverse (especially Supergirl, which takes place on an alternate Earth) looks like following the events of the Crisis.

Supergirl premieres on October 6, 2019, on The CW.