When Kieran is injured by an improvised explosive device ( IED ) , Donna reconsiders , supporting him through the amputation of his leg .
Kieran asks her to marry him , but Donna refuses , terminating their relationship with the intention of giving Mia stability .
When Kieran is injured by an improvised explosive device ( IED ) , Donna reconsiders , supporting Kieran through the amputation of Kieran 's leg .
Kieran asks her to marry him , but Donna refuses , terminating their relationship with the intention of giving Mia stability .