Big Bang has a "no confirmation policy" They would only confirm the relationship if they are going to marry that girl already. It's also a YG thing, I think. It's less messy to clean up. But they aren't the kind of stick to one relationship for now. Daesung dated someone for a while. I am not sure if they are still together. But if they are then that is awesome. We all know TOP had some dating issues and then some (still love him). Seungri is not the kind to be tied down right now. He dated in the past of course. And even if YB keeps telling us Hyorin is his first girlfriend, we all know she isn't...but she is officially our first sister-in-law ^^/

They may have broken up or just trying to cover up