Hi guys could you tell me is there any mistake in this text? thanks
The text is below thank you ; )

Oh hey , I went to 4 choices and 1 soup today , the cashier were asking me 'where is your apprentice? ' then I realized she was taking about you . I told her you have a girlfriend now which is who from Shanghai, then she teasing me she said ' oh so you are being dumped now '

(4 choices and 1 soup is a Chinese restaurant's name , and I and often go with my apprentice which is who's trying to learn Mandarin , I am not a teacher though , wow the cashier used 'apprentice' which is 徒弟 in Chinese to mention him, because she doesn't know his name.)

Question

Hi guys could you tell me is there any mistake in this text? thanks
The text is below thank you ; )

Oh hey , I went to 4 choices  and 1 soup today , the cashier were asking me 'where is your apprentice? '  then I realized she was taking about you . I told her you have a girlfriend now which is who from Shanghai, then she teasing  me she said ' oh so you are being dumped now '

(4 choices and 1 soup is a Chinese restaurant's name ,  and I and often go with my apprentice which is who's trying to learn Mandarin , I am not a teacher though , wow the cashier used 'apprentice' which is 徒弟 in Chinese to mention him, because she doesn't know his name.)

Answer

Oh hey , I went to 4 Choices and 1 Soup today.   [The name of a restaurant is a proper name and should be capitalized.]
The cashier asked me, "Where is your apprentice?" Then I realized she was talking about you. I told her you have a girlfriend now, from Shanghai. Then she teased me, saying,  "Oh, so he dumped you?"

Generally, when you have a new subject, start a new sentence.  (Subject + verb + object.)
Use quotation marks NOT apostrophes to denote conversation.  https://www.thebalance.com/punctuating-dialogue-properly-in-fiction-writing-1277721

Answer

Oh hey , I went to '4 choices and 1 soup' today. The cashier asked me, 'where is your apprentice?' then I realized she was taking about you. I told her you have a girlfriend now, from Shanghai, then she teased me saying 'oh so he dumped you'.

(4 choices and 1 soup is a Chinese restaurant's name , and I often go with my apprentice who's trying to learn Mandarin, I am not a teacher though. The cashier used 'apprentice' which is 徒弟 in Chinese to refer to him him, because she doesn't know his name.)