As cool (and correct) as Hamill’s answer is, it’s also pretty much applicable to almost any character in fiction that we only see as being defined by one sexual orientation. Despite the fact that we’ve only seen, say, Batman and Iron Man and Captain Kirk go from one woman to another, until any of those characters definitively says, “I’m also not interested in members of my own gender,” there’s really no way to know. Anyone who freaks out about these tweets are just begging for wish fulfillment.