Not sure if it can work both ways, as in ive got no clue. Colin loves his mum but never talks about his dad, Holly has spoken about her parents and they are split up and she has said that she hated her mum due to her epilepsy and seizures stating that she found it difficult to lover her. When I heard her say that I even commented here, how could epilepsy make you not love someone and hate themOkay I'm calling it, there is a heavy opedian aspect to the Holly/Colin relationship on both sides