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?

I googled them and based on that they are the same person.

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.