She accompanies Eugene Porter and Abraham Ford on a mission to Washington, D.C.[1] In the comic book series, she joins Rick Grimes' group after they leave the prison and go to DC.

Rosita also takes part in the war against the Saviors led by Negan, the conclusion of which sees the 3 communities uniting forces.

In the TV series, Rosita, Abraham and Eugene meet Tara Chambler and Glenn Rhee while on their way to Washington DC.

[3] She remains with the group when they settle in Washington at the Alexandria Safe Zone,[volume & issue needed] moving in with Abraham.

[volume & issue needed] At Alexandria, she becomes increasingly close to Eugene and eventually forms a sexual relationship with him but remains devastated over Abraham's death.

[volume & issue needed] At the community fair Alpha, leader of the Whisperers, manages to abduct and decapitate Rosita, along with Ezekiel, Louie, Erin, Ken, Luke, Carson, Tammy Rose, Josh, Olivia, Oscar, and Amber (all from Alexandria, the Hilltop, The Kingdom and The Sanctuary communities) and put their heads on spikes.

Abraham, impressed by Rosita's survival skills, told her of his mission to get Eugene to Washington D.C. as he knows the cure to the walker virus and requested she accompany him.

In the episode "Inmates", Rosita, Abraham Ford (Michael Cudlitz), and Eugene Porter (Josh McDermitt) meet survivors Tara Chambler (Alanna Masterson) and an unconscious Glenn Rhee (Steven Yeun) on the road.

In the episode "Claimed", Abraham reveals to Glenn and Tara that Eugene knows what caused the zombie apocalypse, and they are on their way to Washington, D.C. to put an end to the walkers.

In the episode "Us", Rosita accompanies Glenn to Terminus when they reunite with Maggie Greene (Lauren Cohan), Sasha Williams (Sonequa Martin-Green), and Bob Stookey (Lawrence Gilliard Jr.).

In the episode "The Distance", Rosita goes with Abraham, Michonne, and Glenn to see if they can find Aaron's (Ross Marquand) vehicles.

Spencer Monroe (Austin Nichols) offers to take her place, to which she agrees, and she thanks him for stopping the truck earlier.

The next day out on the road, Rosita and Carol have a conversation about Morgan Jones (Lennie James) and her frustration over his views on killing.

In "East", Rosita appears jealous and resentful of Abraham and Sasha, and goes after Daryl when he seeks vengeance against Dwight, but this leads to her capture.

In the season finale "Last Day on Earth", Rosita is in the lineup as Negan (Jeffrey Dean Morgan), the Saviors' leader, arrives and begins beating an unseen member of the group.

In the mid-season finale, "Hearts Still Beating," Rosita is still feeling vengeful, but Father Gabriel tries to persuade her to try to get revenge when the time is right, as the community will need her in the meantime.

The episode ends with Rosita joining Rick, Michonne, Carl, and Tara to reunite with Maggie, Sasha, Enid (Katelyn Nacon), Paul "Jesus" Monroe (Tom Payne), and the newly escaped Daryl at the Hilltop, as they plan to stand against the Saviors.

Sasha advocates a stealth approach, suggesting they take up a sniping position and stay outside the fences, but Rosita insists they go inside to ensure Negan's death.

Rosita, along with Tara, Dwight, Daryl, Rick, Michonne, and the other Alexandrians, escapes into the sewers, only to learn that Carl has been bitten by a walker.

When Tara starts looking for excuses to kill Dwight, Rosita explains that they still need him to win the war against Negan and demands that she calm down.

Rosita retrieves the crate and gives Maggie the attached note, which offers them a "key to your future" in exchange for food and records.

", she and Eugene notice a herd of what appear to be walkers talking to each other in hushed tones, which would mean they have evolved beyond the mindless killing machines they have dealt with before.

While observing the Whisperers, Eugene makes clumsy romantic overtures to Rosita, who gently rebuffs him, saying that she sees him as her friend.

Their relationship becomes more complicated after Siddiq witnesses the murder of several community members at the hands of Whisperer leader Alpha (Samantha Morton) and develops post-traumatic stress disorder.

Still grieving for Siddiq, Rosita is suspicious of a new arrival, Gamma (Thora Birch), and she and Gabriel imprison her while the community decides what to do with her.

In the series finale, as a massive zombie horde overruns the Commonwealth, Rosita manages to find and rescue Coco with the help of Eugene and Gabriel.

Appearance of Flashback Rosita was first announced, along with Eugene and Abraham, in a casting call for Episode 10 of Season 4 in July 2013 under the code-name "Jordana Barrazza".

He said, "It took Abraham dying for the show to basically give her a distinguishable personality and this darker, bitter and stubborn Rosita is vastly more interesting than the old version.

Club, Zack Handlen felt that "Rosita’s become something of a drag of late, as her rage and self-loathing have made her tediously one note.

"[14] Jeff Stone of IndieWire felt that the episode was "an excuse to give Rosita some semblance of character development, something she’s been sorely lacking over her four seasons on the show.