Yes. Chinese may say 啦 at the end of the sentence .But ＂啦＂may means he or she is not very angry.And many youg girls use 啦 in this way. But 啦　has many different meanings .It depends on how the man says it.

"啦" 是助詞，放在句尾。You can regard it as "了" or "啊". it express exclamation and interrogation. example: 你回來啦！(表示语气加强） 不行啦！（有否定 ，又带点征求对方意见）

sometimes.it expresses that maybe he is inpatient or annoyed.like （your mother asked you to eat dinner but you are very busy for your things.then: 行了啦！等一下啦！ but sometime it also uses by girls or someone to show that she is cute.like （when a handsome boy asked her a question. -这样做不对啦~

yes~