My girlfriend

My girlfriend, Lily, had spent the whole morning to arranging the goods in her store. It was nearly lunch time so she decided to go home for lunch. She was just out of had just left the store when she heard a noise in the next store. She ran to see what happened, and then she saw an old man was arguing with a shop assistant. She knew that there must have been some mistake misunderstanding between them. So she walked into the shop and asked them what had happened. The clerk told her that the old man suspected her to of stealing his move mobile. Lily was surprised when she heard this the thing. She was sure that the clerk didn't steal the phone, because the clerk is a sweet and kind girl. So Lily asked the man what the number of his lost phone is, but the man was not willing to tell her for he worried about something. After explaining why she wanted to know the number and the man told her the number at last("the number at last" doesn't need to be put here because you mentioned "the number" earlier in the sentence). Lily dialed the number and heard a ring from a the bag of the man("the man's bag" is more natural). After this all the suspicious suspicions had been were cleared. It was two o'clock then when Lily arrived home, she told her boyfriend me the whole everything which that had happened on her way home.