Lauren is completely loved-up and ignoring Millie. Missing her sister's attention, Millie pretends she's had a valentine from a new boyfriend. Eventually she is forced to invite the made-up Grant round to tea the next day. Naturally enough, the entire family want to meet this wonderful-sounding boy. Meanwhile, Craig impresses Fran when he sticks up for Jake - and soon she's got hearts in her eyes too, to Millie and Lauren's horror. Do they need to stage an intervention - or will Craig put her off without their help?