I, too, enjoy my own company. It is a bit disheartening when I am with my psychologist and have to admit that I have no friends, but other than those times I don't think about it. I work part time and have enough of a supplement that I have no real financial worries. Other than my job the only times I leave my home are when I need to run errands, and then I want to get back as quickly as possible.
I am alone, but not lonely in the least. The one friend I did have, who I cherished visiting, passed away just over a year ago. I do miss her, but am not looking to meet someone else to fill that niche. I feel if it is going to happen, it will and I don't need to search for it.
I have never measured how long I stay inside, and really never worried about it.
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The pure and simple truth is rarely pure and never simple. -- Oscar Wilde