Sawyer pulled his gun on Zoe only after she answered his "what where you doing in Guam" question with the questionable response of "going to see my boyfriend." His response to that was something like, "You're good, sweetheart, but you're not THAT good." He didn't believe she was straight! Didn't you notice her voice immediately changing then from a squeaky soprano to a deep, masculine contralto? Zoe is "one of the guys" -- really! And was casting an uber guy vibe!