How to Use "platonic" with Example Sentences

1. The platonic doctrine tended to an extreme transcendentalism .
2. Their friendship is based on platonic love .
3. Can you keep a sexy male friendship in the platonic state while feeling stuck in a loveless , sexless marriage ?
4. They rarely expressed self-doubt and their love life was almost platonic .
5. This is somewhat like platonic cross-sex friendships .