Ruth arrived in the grid after getting a secondment from GCHQ. For her it was a dream come true. She always longed to get a taste of the MI5 life and she was determined to be a success. She was enthusiastic, dedicated and an invaluable member of the team. She was there to find the facts the team need, and her research always hit the spot.
Ruth was brilliant, but also completely bananas. Her excitement at working for MI5 sometimes got the better of her, and her colleagues were sometimes rather taken aback by her enthusiasm for new projects.
There was a spark between Ruth and Harry for some time. They went on a date and colleagues noticed the chemistry between them.
The relationship, however, never took off. Ruth was framed for colluding with terrorists, and she took the decision to fake her own death and disappear for good.