Baekhyun and Chanyeol finally met up and Baekhyun admitted to himself that the only reason why he is going to act like he really cares about him or perhaps love. Was only to get more attention and to be called "Awww otp" under the comment section by the jealous girls who couldn't have him.
Baekhyun had this all planned and couldn't care less about hurting the taller's feelings. It may hurt but he might get over it.
So, Baekhyun acted like he actually cared for his feelings and started with his act.
Chanyeol should really stop exploring the wonderland or else he might get lost and feel shattered.