Sulu held up a hand, shaking his head. "You don't have to apologize for him. I know how he's going to react." After all, Sulu himself had felt irrational and angry when he'd found out. He'd also bring it up again later on, when things were better suited to serious conversations like that. But Jack... he knew Jack wouldn't give Ianto that sort of leeway. And he shouldn't. After everything that had happened between the two of them, the fact that Ianto still kept secrets from Jack was frankly mind-boggling. Sulu could understand why Ianto had thought it would be a good idea, but to know that Ianto loved Jack and still hid things when he probably knew it would be smarter to be upfront...

"One thing's for sure," Sulu said, frowning slightly as he looked at his tea. "We're going to have to work on your communication skills, because this sort of situation can't happen again. You can't do this to either of us."