I would generally expect to interpret a "yes" as the former? The "why would you say that, I do like you" seems more like a "no", though troublingly an unqualifi

I would generally expect to interpret a "yes" as the former? The "why would you say that, I do like you" seems more like a "no", though troublingly an unqualified "no" probably also implies "No, I don't [like you]." Maybe if spoken with a tone of offense an indignation...