Editor’s Update: In the month since I saw “Sex with Strangers” at New Brunswick’s George Street Theatre, JoAnna Rhinehart has caught up to Kyle Coffman in quality. David Saint’s production of Laura Eason’s play is now much more an occasion of acting equals and, consequently, an even more satisfying ping pong match of wit and personal style. Themes come out stronger as well. Eason’s play seems deeper and more faceted because Rhinehart has found her character’s core and is an exponentially more faceted person. Matters of trust, ethics, and who one really is beyond his or her persona sing louder and have more impact. All writers are suspected of being autobiographic and judged by their scribbles, especially novelists and particularly novelists with the talent of Olivia and Ethan. Eason breaks down the possible fallacy, or at least shows you why notions of biography can be false. Just as one can’t judge…