Kenneth was always a simpleton. It's never been overly attractive, but it's not ugly either. He has always felt that his life was very boring, and he considers himself a boring person. He tried to make his life more interesting by having a romantic partner, but Kenneth's insecurity and clumsiness meant that relationship did not end well. Since then, Kenneth has had multiple girlfriends, but all of his relationships have ended in catastrophic ways, leaving his self-esteem in tatters.