Name changed for this.
DS is 16, has had girlfriends in the past with one ‘serious’ relationship. He’s got a new friend who goes by a male name, and DS announced they were trans. I thought initially that they were male wishing to be female. But it’s transpired that they are a biological female wishing to be male. Yet DS has announced they are dating and have kissed 
I think I’m just taking time to get used to all of this and I don’t really know what to make of any of it. I was under the impression DS was straight but if this person wishes to be male does this make DS gay? 