On some level, Bill had expected the anger. It wasn't always easy for him to defuse his siblings, but he knew that with the Weasley temper there had to be some sort of outlet for it.
"No, I wouldn't," Bill said quietly. "But... but," he made sure Ron was paying attention for this, "my relationship with Fleur is at a completely different stage than yours with Hermione. We're already married, we have a child." He sighed, searching for the best words while he sipped his drink.
"It might not be the best choice, but you are both young and at the beginning of most things. It makes sense on one level while it's unfair on another. But can you tell me, Ron, were you actually happy with the relationship you two had... the one just before the breakup?"
Not the idealized one or anything, just simply with the way things had been.