That's good news, if she learns then the only point is her way of talking to you which gives you the impression the lesson is boring. But I must say that it is not, otherwise she wouldn't learn at all! She is shy, that's all.
Regarding the writing, there are so many things to do!
I use guided composition with tables that I prepare, for example: describing a picture. The table contains the main elements of the sentences (There is, There are, etc), and the pupil extracts as many sentences as possible from the table. Then she should write some sentences on her own, with another picture. You can brainstorm with her some words that she knows, and teach her new vocabulary with flashcards, regarding things in the picture unknown to her.
You can take an image of "find the differences" in the internet, and ask her to write them. She may use the present progressive, and other patterns.
Teach her the P.O.S. (Parts of Speech) and give her sentences that you wrote, asking her to classify the words, learning word order in a sentence. Have her write her own after that, based on pictures or a text she read.
I often tell jokes to my students, short ones, easy to understand. Then I ask them to write some; riddles are also very good, they love it!
Don't forget to teach her the three main parts of a composition: Opening, Body and Closure. She may write a simple letter to a friend, for instance. If she is not able to write on her own, give her a ready template, I mean, a ready letter with blanks; after filling in, she should rewrite without copying. Do it as many times as needed until she succeeds writing her own.