Friends with Benefits Season 1 Episode 4 The Benefit of Forgetting ( Air Date 2011-08-12 ) Genre Drama, Comedy category. Overview "Ben runs into an ex and reaps the benefits of her short-term memory loss. Meanwhile, Fitz fears his lesbian mother is lonely and tries to find her a girlfriend, but is surprised to find that she is already in a relationship. Elsewhere, Riley dates a man with a breast-feeding fetish.".