[It takes him a second. He's clearly organising a couple of thoughts before he decides to say anything.]

You wanted us to let each other know if something changed between us and someone we were sleeping with. [Which he doesn't object to. It's just... he didn't think he'd be needing to have this conversation.]

I said I didn't want that. At the time— at the time, that was true. [He's measuring his tone carefully, calmly.]

But. There's been a... development. I guess. [A soft exhale through his nose.] There's somebody else.