Harry is a strong controlling character while Nick appears unsure of his own shadow. Harry pulled him in wearing PVC Dominatrix gear, bathing him and what looked like drawing his attention to the world of 'pain and pleasure' when he was subjected to a hair rinse under either very hot or very cold water at the hands of his dominant partner.
The pleasure certainly turned to pain as Harry Amelia's personality turned to bunny boiler with Nick always in her bad books. Being carefree, having fun and enjoyment just don't seem to be part of Harry's vocabulary and passive Nick continued to feed her character by pacifying it.
Nick has been told by numerous fellow housemates to 'get a pair of balls' but it wasn't untill ex BB housemates James Jordon and Jasmine Lennard sat him down during the BB Hotel from Hell task that Nick started to take notice.
Both James and Jasmine informed Nick he needs to step up and either whip Harry in to shape or dump her as the situation is getting boring and she could impede his chances of winning Big Brother 2015.
Nick and Harry have since had another altercation in which Nick actually stood up for himself and it seems the relationship is now over as Harry dumps Nick while having a naked shower. Was this intentional?....'look at what you'll be missing.'
We could actually see Nick pull away from the situation but will Harry be prepared to leave it at that? Maybe not! Harry certainly has issues to sort out and Nick has been her only support in the house. In short, she needs him more than he needs her.