Just Friends

When Elizabeth makes a promise to herself that she won't date anybody for at least a year after her and her ex-boyfriend break up, with a little bit of reluctance she keeps it up. Starting her sophomore year single, Elizabeth get's a new bestfriend who might change her mind when she said not to date anybody. With the help of him having a girlfriend they stay "Just Friends" till two weeks before they break up. Did she make a mistake or were they suppose to happen?