How many words to write in a love letter was a subjective question. It mainly depended on the author's own writing style and the depth of the feelings he wanted to express. Generally speaking, the longer a love letter was written, the deeper the feelings expressed, and the better the readers could understand and feel. In writing, some things like descriptions and dialogue are used to express emotions, while others. Therefore, the number of words written in a love letter also depended on the author's writing style and the depth of the feelings he wanted to express. The length of the love letter should be appropriate to express the author's feelings without making you feel tired or bored. You can try different ways of writing to find the most suitable way to express your emotions.