sehun neveer stop thinking about the reason tao leave exo. 

first day before tao leave, they still can share a kiss, holding hand each other and smile like forever.

but sehun know is there something bad will happen as soon as possible when tao asking him

"sehun... promise me that you still love me and wait for me. remember that i always love you"

and next day sehun can't find tao anymore