Final answer:
Ren is struggling with writing a letter, as indicated by the multiple revisions to find the right wording and message.
Step-by-step explanation:
Ren is struggling with writing a letter. This task often involves drafting and redrafting to find the right tone, structure, and content that conveys the writer's intention to the recipient. The act of rewriting a letter multiple times indicates a careful consideration of word choice and overall message, which is common in writing a personal or formal letter.