Last night, unfaithful Kat was finally honest with her husband, confessing to her infidelity at last.
As tonight's episode begins, Alfie (Shane Richie) is reeling following Kat's admission and he demands to know every detail about her affair.
A guilty Kat (Jessie Wallace) tries to make excuses for her behaviour, but soon decides that it's better to be honest with Alfie - telling him that she is confused as she thinks she may have fallen in love with her mystery man.
Alfie is disgusted but is also desperate to know the truth, so he pushes Kat to reveal the identity of her lover. When Kat refuses to do so, is there any hope left at all for her relationship with Alfie?
EastEnders airs tonight at 8pm on BBC One.
> 'EastEnders' Kat affair reveal - what to expect
> Read our spoiler for tonight's 'EastEnders' episode
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