Katy picks her four favourite letter writers to meet face-to-face at a speed dating event in London, including 74-year-old former professional footballer Carl, and painter and decorator John. Meanwhile, it's decision time for dairy farmers Martin and Grace, who have each invited three potential suitors back to their farms. Both are looking for a partner that will fall in love with not only them, but also their rural lifestyle and are hoping sparks will fly with at least one of their guests during their weekend stay