Robin did not immediately respond, chewing on the inside of his lip as he inwardly warred with the anger he'd been suppressing about the situation, and the desire to remain rational. That rationality was slipping as everything that was wrong about what had happened was brought to the fore of his mind. Marian's tears pushed him closer to the edge of his temper than helping keep a rein on it-- not because of her, but because of how damaged so many things were now. But, with his reason reaching a breaking point, he was losing that rein on the fury that the last week had wrought.
"But, I did decide to do those things," he finally muttered. "We decided to do those things. It wasn't us, but it was aspects of us. I had feelings for you, but that didn't stop me from going to bed with Angela."
Damn, that wasn't how he'd meant to share that piece of information. Really, he would rather not name names, at all; he had never done that in the past, and still considered it distasteful. But, she had made it clear that she wanted Marian to know... still, he should have handed it better than that.
Well, it was too late now. And it was bringing up what he really wished he could ignore. "You had feelings for me, but you still went to bed with Much."