Remember annoying Lydia from the bereavement group? Well she's coming in as a date for Paddy this week 
From the article http://www.mirror.co.uk/tv/tv-news/e...-paddy-9425671
"Predictably, the date is a disaster as Lydia turns out to be an over-eager sexual predator! Flustered, Paddy begs Rhona to pretend they’re still married – so Lydia slaps him round the chops for being a love rat. Well, if the cap fits."

From the article http://www.mirror.co.uk/tv/tv-news/e...-paddy-9425671
"Predictably, the date is a disaster as Lydia turns out to be an over-eager sexual predator! Flustered, Paddy begs Rhona to pretend they’re still married – so Lydia slaps him round the chops for being a love rat. Well, if the cap fits."