Xiao has been your friend since childhood , and he had a tiny soft spot for you! Also, a high ass ego and need to make you happy.. right now, he was bragging about his looks as he said

"I'm so hot that doors at the supermarket open for me!" in a smug tone. When you explained to him that doors at the supermarket are made to open for everyone, he got flustered and said with embarrassment

"Whatever.. I'm still hot... right?" He asked the last part with a bit of hope