Marnie's romantic relationships and sleeping partners are not explicitly stated in the context provided. To answer this question, we need more information about who Marnie is.
Possible Interpretations:
- Marnie as a fictional character: If Marnie is a character from a book, movie, or TV show, we would need to refer to the source material to determine who she sleeps with.
- Marnie as a real person: If Marnie is a real person, we don't have access to that information. It's important to respect people's privacy and not speculate about their personal lives.
To answer this question accurately, please provide more context about who Marnie is.
