It's Imogen's birthday, At school, Imogen is horrified to discover that her fitness guru mum is helping with Tariq's rowing fundraiser. Jealousy rears its ugly head when Christine witnesses a closeness between Connor and Imogen. Worried that Connor might be confiding in Imogen about her drinking habit, Christine snaps at her son. But Connor retaliates - he'll make his mother's life a misery if she doesn't back off. Later, at Imogen's party in the school house, a tipsy Sally turns up uninvited. Sensing Imogen's shame, Connor asks Sally to leave. Feeling protected, Imogen reveals her hidden secret to Connor… Also this week, rival headmaster Gerard makes false claims against Michael, while Sian reaches out to Michael's estranged father Billy.