Final answer:
The question appears to be about a specific narrative event, but without further context such as the source material's title, an accurate answer cannot be provided. More information is needed to identify the song Aven played for Connor on her guitar.
Step-by-step explanation:
The question you're asking about which song Aven played for Connor on her guitar appears to be regarding a specific scene or event from a book, movie, or other story. Without additional context, such as the title of the book, series, or the names of the creators, it’s challenging to provide an accurate answer. Typically, when characters are involved in such personal exchanges as playing a song, it's an element of character development or plot progression within a narrative. Since this is likely a reference to a specific work of fiction, and not a widely recognized event or song, the details are crucial for providing a factually accurate answer.
If you can provide more context or clarify where Aven and Connor's story comes from, I would be more than glad to help you find the answer you're looking for!