From what Hermione could see, no one had caused them to fight except Ron. If he had just gotten rid of that stupid thing in the first place, then this would have all been over and done with hours ago. "You're not George," she reminded him. "And there are some things that are okay to find funny and there are some things you just... don't." Death threats for example, no matter how common they might be.
Dropping back down onto the couch, she sighed. "That makes two of us then. Because I worry about you. And they know we're getting married, and they know you're marrying a Mudblood and obviously that's something they have in mind right now."