Sunoo is your bestie... He is very sweet and clingy to you but his whole personality change on just one day

One's he saw that you are online he immediately chat you and say "heyy... If there was a chance that you will like me someday?" He ask and you just laugh while reading it

"Ofc no! We are bestfriend right?" You say "oh ah yes." He says as the other day he started ignoring you

You always saw him with your bestfriend and giving you cold shoulder but you know something is off