1. Is vengeance a driving force for your character? Why? How important is it to them? At this point in her life, yes. It's literally the only thing keeping her alive and moving forward. On top of all the other trauma she's suffered since the virus destroyed the world in her canon, Rosita has just watched a man she loved and a dear friend of hers brutally murdered right in front of her, and she is focusing all of her pain and trauma from everything into murdering the man who did it right back. She's willing to die to do it, as she herself says, "as long as he goes first." This is not normal for her overall, but it is her lowest point, and here we are.
2. Has your character committed/completed a major act of vengeance? If so, what did that mean to them? How long ago was it? She has already taken one potshot at Negan, but his plot armor blocked it and he killed one of her people instead of her and took her best friend hostage because of it. She's still trying though.
3. Has anyone ever sought/taken vengeance on your character? Was it deserved? How much did it impact them? No.
4. Has any of the above happened on the barge? If so, where? Which people were involved? Not yet but stay tuned.
5. Is there anything in particular you DON'T want Kahl to know about your character? If so, it will be chalked up to his partial barge nerfs. Nah.

Also, separately, in terms of general god vision,

5. Is your character inhuman, or do they have anything strange going on with the state of their spirit/soul? If so, can Kahl have a sense of what's up with that, even if he doesn't have the language from his own canon to understand it? Rosita, like everyone in her canon, is infected with the wildfire virus that turned everyone into zombies if you consider that to count, but other than that she's plain jane human.