Senior Year by Anne Emery, 7th Scholastic paperback printing, T70, 1968, 188 pages.
DESCRIPTION:“‘The most awful thing…’ exclaimed Sally tragically. At the very beginning of her senior year- the year that was to be best of all- her best friend goes off to another school. Dependable Scotty starts dating someone else. Sally finds herself a party fifth wheel. Everything goes wrong, until Sally begins to discover- Sally.” (from the back cover)