But is she telling the truth? And can she and Lexi get on?
FOR WEEK COMMENCING 22ND APRIL
As the day of the London Marathon arrives, the Square is abuzz with excitement. But with Jay insisting that he can't run following Nadine’s revelation, Honey persuades him otherwise.
After needing to drive Whitney, Britney and Zack to A&E following Britney’s bike crash, Billy is delayed in getting to the starting line, but when he finally arrives, his bad luck continues. And before long, Phil and Lexi arrive at the finish line.
Soon, Jay is given food for thought and invites Nadine to No.29B, but it’s not long before the pair start arguing when Jay questions the baby’s paternity.
With Nadine insisting the baby is his, she reveals that they're expecting a girl. Promising to be there for her and the baby, Jay gives her money.
Later, Nadine visits Jay, Honey and Callum to apologise for causing upset with Lexi about the pregnancy. But when she realises how serious Jay is about the baby, she's overcome with guilt.
As Jay treats Lexi and Nadine to lunch at The Vic so the pair can bond, Lexi can’t contain herself as it’s clear a rift is starting to grow between the pair.
EastEnders continues Mondays to Thursdays at 7.30pm on BBC One with first look episodes available from 6am on BBC iPlayer