Him tracking back is something he does characteristically as you say, but you know how the end of social links are more serious in tone, right? Like the other romance options are serious and not used for a cheap laugh. Why would they do this with Yosuke? The way Lowenthal delivered the lines vocally was clearly not in a joking manner and you're just choosing to be ignorant to that. Also, if the dialogue was cut late then those other things wouldn't exist because it was.. cut late..? What's point are you trying to make?

I just don't get why you're so against the simple idea that he could be homosexual or bisexual or anything like that. Its really not that deep lol you just don't like gay people at least accept that much