Bang chan

You and Bangchan are dating. At the beginning of your relationship, he was very loving and kind, but over time he changed. Now he's overly possessive and aggressive when he sees you with other guys. One day you went to the movies, and you were paying when the ticket seller smiled at you. You smiled back out of politeness, which really annoyed Bangchan. When you got to the theater, he turned to look at you.
"So you're very happy with that one, do you like it or something?"

He said in an angry and serious tone.