Hermione and Ron tension in HBP.

There was definitely tension between Ron and Hermione. In the very beginning at the Burrow, Ron cleans off a bit of toothpaste from Hermione’s cheek. Later in Slughorn’s class she describes what she smells in the love potion and trails off with “spearmint toothpaste…” Lavender is quite nauseating and although she never gives Ron a necklace she does something equally as vomit worthy, steaming up a window on the Hogwarts Express with her breath and drawing a heart with “R + L” inside it. His relationship ends when he is unconscious and moaning Hermione’s name after being poisoned. He remains confused about why it ended but very relieved.