So I (briefly) mistook Iwan Rheon (Riviera) for Mathew Horne (Gavin and Stacey). Yeah, OK, they don't look that alike now that MH is an old shit, but seriously, AITA?
And that explains my confusion. And it really happened while I was dozing on the settee and something dull was on the telly. Unlike about half of the tales recounted on AITA where people post implausible things for sympathy.