I like having some time to myself everynow and again.
The problem is when my fiancee is home I feel kinda guilty for spending time on my computer, so I don't get much time on it until after she's gone to bed normally.
Also means I can forum (ooh, I've just verbified it!) without getting disturbed every 10mins. I get a bit irritated if I get called away in the middle of writing a post to help with dinner, a cuddle or some other nonsense.
Like Syph, I've never had any problem keeping myself entertained. Always got games to play, films to watch or books to read. One of the reasons why I never used to get bored during summer hols at school etc (nor wanted to get a summer job).