Other messages contained in the letters, which are dated from the early 1980s, include 'I can't bear another day without seeing you', 'I'll be dreaming of you' and 'I love you more than ever and will make sure we never split'.
The pair eventually arranged to meet and had a day out in Henley on Thames in April 2012.
The Irish Sea lies between Great Britain and Ireland.
With an area of 242,500 square kilometres (93,600 sq mi), the UK is the 78th-largest sovereign state in the world.
People of the United Kingdom use a number of different terms to describe their national identity and may identify themselves as being British; or as being English, Scottish, Welsh, Northern Irish, or Irish; However, it is usually abbreviated to "DU" for the mutated form "Y Deyrnas Unedig".
Prior to the creation of the UK, Wales had been conquered and annexed by the Kingdom of England.Lying off the north-western coast of the European mainland, the UK includes the island of Great Britain, the north-eastern part of the island of Ireland and many smaller islands.Apart from this land border, the UK is surrounded by the Atlantic Ocean, with the North Sea to its east, the English Channel to its south and the Celtic Sea to its south-south-west, giving it the 12th-longest coastline in the world.The adjective "British" is commonly used to refer to matters relating to the United Kingdom.The term has no definite legal connotation, but is used in law to refer to United Kingdom citizenship and matters to do with nationality.It has a high-income economy and has a "very high" Human Development Index, ranking 16th in the world.