All of Kitty's Continuity's

Part 2

Power of the Prime Trilogy: In Combiner Wars, she was only just a minor character, only showing up for the final battle between Starscream and not explaining how she got there. She mentions that she used to have a relationship with Hot Rod/Rodimus Prime but broke it off because he was always busy and was never talking to her. In Titans Return, she works with Perceptor to figure out what the Titans want and figure out how to stop them, she occasionally flirts with Perceptor but is turned down every time, with Perceptor saying that science is more important than love. In Power of the Primes, Kitty meets Optimus Primal and falls head over heels for him. She instantly tries to protect him at all times even if it gets her almost killed and ripped into two by Overlord. By the end, she creates a relationship with Primal.

Bayverse(Michael Bay Movies): Kitty is first introduced in Age of Extinction and has no back story, but says that she did once have an interest in Drift but was never with him. In The Last Knight, she has a relationship with Crosshairs and always flirts with him, which gets Bumblebee mad a lot.

Knightverse: She shows up on Earth shortly after Optimus shows up on Earth. She mentions having a relationship with Hot Rod but never goes into depth about it. She gets into arguments with Arcee a lot because Arcee says that she deserves Hot Rod and not Kitty. Optimus or Ratchet usually have to break up the fights.

War for Cybertron Trilogy(Video Games): Kitty isn't much of a warrior and more of a medic, she was only on the field fighting when she needed to grab injured Cybertronians. She's with Rodimus and works with him until his dying breath. Kitty doesn't see him die on the field, but she hears about his death from Optimus and screams. She wanted to stay with Rodimus and wished that she could have saved him. After a short time, Cybertron was destroyed, Optimus calls a team of Autobots to join him on Earth. Kitty decides to go to this planet to see new scenery, she knew Optimus and wanted to join him, she wanted to try to stop thinking about Rodimus and accepted that he was gone, no matter how hard it was, she couldn't ever forget about her Roddy.