Here are some key moments:
* Ron's jealousy: He's very jealous of Viktor Krum's attention to Hermione in the fourth book, and this jealousy continues throughout the series. In the seventh book, he even makes a jealous comment when he sees her with Cormac McLaggen.
* Their growing understanding: They spend a lot of time together on the run, and they learn to rely on each other. They argue and disagree, but they also comfort each other and support each other's decisions.
* Ron's departure: In the middle of the book, Ron leaves the group, overwhelmed by the pressure and the constant threat of danger. This forces Hermione to confront her feelings for him, realizing how much she misses him and relies on him.
* Their reconciliation: When Ron returns, Hermione is thrilled and they finally admit their feelings for each other. They kiss for the first time at Shell Cottage.
It's important to note: While they don't officially get together in the seventh book, the events in the book provide a strong foundation for their relationship. They both express their feelings for each other, and their bond is solidified through their shared experiences and the realization of how much they mean to each other.
It's in the epilogue of the series, 19 years later, that we see Ron and Hermione married with children, showing that the foundation laid in the seventh book led to a happy and lasting relationship.