Overview: Billy and Minty begin to suspect that something has happened between Andy and Alfie. Alfie naively alerts Andy to these suspicions, with dangerous consequences. Chrissie and Sharon become closer when they have a heart-to-heart, in which Sharon opens up about Dennis. Martin and Sonia receive an unexpected surprise from the residents of Albert Square, and Dot attempts to speak to Dr Leroy about her health worries. Despite Yolande's deep religious beliefs, she and Patrick decide on a register office wedding. Charlie offers to stand in for Kat and Alfie at the pub while they go away.