Being alone and being lonely are 2 different things,you can feel lonely in a house full of people
I've lived alone a long time but the only time i have been lonely was for the year between cats,that was because i was the only living thing in my house aside from some spiders,i got very depressed with the quietness of it all,new cat and i don't feel lonely again,having had a taste of being lonely i really feel sad for old people who are on their own and hate it
It is as difficult for me to understand why you would want to be surrounded by people 24/7 as it is for people to understand why i like the solitude,we are different i suppose