What I miss, and am unlikely to find is the person who knows exactly where I am coming from, with whom I can be completely frank, with whom I have shared the last 53 years with all its ups and downs, and who is as close to me as my right arm.
Love may come late in life (look at Jill Archer and her Leonard) but you cannot replicate all those years when you effectively grew up together, became a family and saw your children grow up and have their own families.
However, I realise that I have been privileged to have that view of a relationship.
So, a partner? Not necessarily - the partner, ah well.