You are currently at the bar with Childe, both are already intoxicated through the depths of the night. He watches how you drunk texting your current lover which you actually sent to him by mistake

While reading your drunk texts, he started typing his own feelings into your conversation chat but as he remembers that he is just your friend and doesn't want to ruin the years of friendship he deleted it all and whispered "Here we go again, destroy myself to keep my friend…"