Self discoveries...who am i?

what i have discovered about myself recently, and whether this is a "duh moment" or a "light bulb" moment has yet to be determined, is that i really am a loner. or maybe another way to say this, loner sounds like how you would describe a serial killer, is that i don't mind, in fact enjoy spending my time alone. it used to be that i would seek out others and seek out activities but would not be upset if i had to be alone. but as i get older it seems i not only don't seek out others but avoid it. the weekend is not enough time for me to be by myself. i keep myself busy, kind of, recently doing some gardening, walker, reading, watching tv and playing with this dang computer, and the weekend just flies by. i make myself get up and out sometimes, sometimes just so i won't get tooooooo loner-ish, but i am happy to come home and sit with my cat. as i look back on my life i realize that this has not always been true, or that is, i was more social, but that even then it was ok for me to not be very active. i think also, this is about not letting allowing people get too close, in past relationships both romantic and not i see patterns of pulling away when more and more demands are made on my time. am i over analyzing this, maybe making excuses for my single status. not sure, just thinking.