The Clinic
Episode 9 (3x9)
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Dan is terrified when he realises he could be caught out for dating both Cathy and Sinéad and tries to find a way to prevent them meeting. Dan is thwarted when Sinéad meets Cathy. He tries to talk his way out of it by telling Cathy it was her idea to have a no strings attached relationship and as soon as they started to get serious he finished with Sinéad.