Ron probably needed to let go of Hermione's hand to actually start picking things up and packing them but he had yet to do so. There was just something unfortunate about the place that made him unable to do so, just like why he had not been able to touch anything quite yet. Even if it didn't feel like Harry anymore, that didn't change the fact that he knew these were Harry's things.
He took a deep breath, letting it out slowly as he looked around the place. He'd rather start with the things that weren't really that personal. Books, papers, dishes, and the like. That would keep him from thinking too much and maybe even give him a chance to breathe. "I guess we can start in here and the kitchen. Get the books and papers and his kitchen things." He didn't really want to explain why he chose this way, but it seemed like a simple enough answer so maybe she'd agree to it. He finally let go of her hand and conjured up some boxes for them to pack things into.