I love going it alone!
In the winter my g/f doesn't really enjoy camping, but I love being out there! The best is the high desert at fifteen or twenty below zero...bone dry and dead quiet. Even ten below is pretty cool. I love it because I don't run in to anyone, nobody bugs me, there are no mosquitos or deer flies or horse flies, no bears either I guess, not that I give that much consideration anyway.
It's nice when you get a bit of wind out there...you can lie there on your sleeping bag close to the fire (no tents required...it's dry as a bone!) and listen to the crackling fire and the wind in the trees above you. I take books on the wilderness and log construction and lie by the fire and listen to nature and read. On top of your sleeping bag, you can feel the cool wind blowing down your back, but the front side is warmed by the fire. You roll over every ten minutes or so to heat the other side, and maybe heat up a bit of hot chocolate on the fire...
That's really heaven!
Honestly if you live around people, you've already seen the absolute worst this world can put out, so the further out there you get by yourself, the safer you probably are. My dad, a solo prospector for years, said the same kind of thing...there's nothing out there that'll do anything worse than a person will do.
I usually have guns with me, but not because I feel the need to be defended, just because I like guns and I am probably out there shooting during the day! In fact I am more inclined to view the guns as protection if I have people with me...I don't worry about myself at all and any neurotic tendencies I have to obsess about defending things really is focused on my g/f, who's got fewer natural defenses than I do!