"If you call this mean, you never met my mother," Sirius said shortly.

Really, dingbat and telling him to grovel was far tamer than many things that'd been said to him, especially the words he said to himself. But she was missing the point and seemed too determined to interject herself into their relationship. And that set off his temper-- a little.

"What I'm telling you is that there are things between us that aren't your business," he snapped. The words coming out quickly as his face began to flush. "I don't care what you want to know or if you're trying to give me a trial, I won't let you hurt him more just because you're curious about our relationship." He took a breath, feeling a flare of self-consciousness that he'd actually said 'relationship.' As if that applied for them now. The best you could say about their 'relationship' was it was a disaster.