Question: who did kat date on home and away

title: Kat Chapman
text: Kat 's first storylines saw her interact with Darryl Braxton ( Stephen Peacocke ) as she investigated him for murder . She forms a relationship with local doctor Nate Cooper ( Kyle Pryor ) , which is tested a number of times . Kat has survived falling over a cliff face and being shot . Towards the end of 2015 , she was targeted by villain Charlotte King ( Erika Heynatz ) . The character 's background was explored further with the introduction of her abusive former fiancé Dylan Carter ( Jeremy Lindsay Taylor ) , who arrived in the Bay to lead the investigation into Charlotte 's murder . Following Dylan 's departure , Kat began a relationship with Martin `` Ash '' Ashford ( George Mason ) . She also faced problems in her career and briefly resigned from the police force . Miller earned a nomination for the Logie Award for Best New Talent for her portrayal of Kat . 

Answer: answer: Kat Chapman forms a relationship with local doctor Nate Cooper. Her abusive former fiancé Dylan Carter is introduced. Following Dylan's departure, Kat began a relationship with Martin ``Ash'' Ashford.