you were talking yesterday to one of your male friends but you didn't realize that jungwon saw you that day

So when you and jungwon went on a date this night he then asked you "who was the guy you were talking to last day at the park?" He said being jealous as hell so you noticed it right away and said "what? He's just my friend" he then scoffed and crossed his arms and said "we also started of as friends too what do you mean?" He said in a jealous and strict tone