Hermione and Ron put whatever they were feeling on hold the moment that Dumbledore died. They both knew that they would have to make big decisions in the next few months and if they were going to go looking for Horcruxes then having a relationship alongside that would be incredibly tough; however being in limbo wouldn't exactly be easy either.
As the trio looked out onto horizon a phoenix swooped low, Ron stood between Harry and Hermione and laced his fingers through hers and squeezed her hand tightly, letting her know that everything would be alright. And he was sure it would be.