I saw her kissing another girl yesterday, and I was heartbroken. She was my crush, and she was also my best friend

I then walked into her room. She was sitting on her bed on her phone, and she was smiling probably because she was talking to the girl she kissed yesterday

I walked up to her, and then I sat down on her bed,I then tapped her leg and she looked up at me, I looked at her with tears that were about to fall at any moment

"That's...um kiss...yesterday...did you enjoy it?"