It's more implied due to the fact they spend the majority of the last chapter together without Harry. Also, there's one particular line that seems to be going towards that:
Touched By His Noodly Appendage
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Quote:Whether anything will really come from this remains to be seen in Book 7.*********
Ron...was now holding Hermione and stroking her hair while she sobbed into his shoulder, tears dripping from the end of his own long nose.
Touched By His Noodly Appendage
www.venganza.org