-OP's trying to make a joke-
: congrats on ur win today! but i have an unfortunate news for u..
: what news~? noona, your hair suits you really well
: huh? oh thanks ;;
umm i changed my bias
: really?
: my bias changed from cute soonyoungie to

: to the very cool...

member X of group X
: ㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋ
: why aren't you sulky?
: ofc i am~ noona but your clothes are tiger
: u just don't believe this at all
: ㅋㅋㅋㅋㅋㅋㅋㅋ
: i prepared this bec u never believe fans when they joked like this

: and i wanted to tease u a bit
: ah noona why did u only come up with such things when we don't even have much time~ i want to talk more

ps: the original joke is around the line: "i changed my bias from cute (you) to really cool (you)"