And Billy finally agrees that Todd should move in.
When Summer takes Billy and Todd for Father’s Day lunch at the bistro, Billy worries as she keeps going to the toilet before making an excuse to leave to get back to her revision.
Todd suggests it’s time he moved in properly, but when they return to the flat to find Summer has collapsed after a dizzy spell, all thoughts are put on hold.
Summer is horrified when she realises that Billy and Todd think she’s got an eating disorder. But as Billy tries tries to reassure her, she faints again.
In the hospital, they’re all floored as Summer is diagnosed with type one diabetes. And Summer struggles to take in the news that she’ll need to manage her condition with injections.
Later, as Summer and Amy discuss lads, Aadi takes Summer’s comment on board that she quite likes boys in makeup.
Putting on a brave face, Summer tells Billy and Todd how the doctor has shown her how to check her blood sugar and inject herself with insulin.
With Summer home, Todd is thrilled after Billy tells him that he’s changed his mind and reckons he should move in.
Coronation Street continues Mondays with all episodes available on ITV Hub ahead of being shown on ITV on Sunday, Monday, Wednesday and Friday