People vary in the amount of social interaction they need, want or enjoy. It is indeed far better to be alone than to be in a bad and destructive relationship. In my first year of uni i made loads of friends easily, i had just been let free from a dead end job to the freedom of uni and life was so much better. I was happy and positive, people liked me (not everyone, some people loathed me, but i was very confident then, i idnt care) through luck, one guy decided that he liked me and introduced me to his social circle which was very wide indeed and included a load of pool playing stoners. Thats all it needs just one stroke of luck, doing the right thing, in the right place at the right time. I later became aware that i was being used by other people, who wanted to get into this social circle. Those were my glory days reallly, everything soon came crashing down, i had a nervous breakdown about halfway through the final term of my first year.
I didnt really want to socilalise after that, i changed a lot. I changed uni. I didnt make many friends at my next uni, i was fucked up and very insecure, "nobody understood me" is the tired cliche but there you go. I got on well with 2 of my housemates, and one of the guys on my course was a decent guy, and there were a few people i talked to off and on. At the time i was so worried, ive only got 3 people that i like and get on with down here, looking back now, i dont know what the fuck i was worrying about, i should have been taking better advantage that a number of females found me attractive at that age.