Nigel Warner was the supposed father of Alex and ex-husband of Nessa Warner. Nessa's sister, Cathy Matthews, never liked Nigel due to the fact that he abandoned Alex at a young age. However, after doing some digging, Cathy discovered that Nigel wasn't Alex's father after all - Nessa had cheated on Nigel with Cathy's husband Alan. Feeling sympathetic, Cathy offered Nigel the chance to see his son again.
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