Can confirm that the guy did do a U-turn. Source: I was the guy who got hit.
according to the guy who I hit, he did a U-turn because everyone else did a U-turn. He then swerved to miss 2 people. I was in the blind spot of these 2 people and so he didn't see me.
Not sure who will see this but oh well. I'm moving down to Cardiff for Uni this weekend and was wondering if anyone still rides fixed in Cardiff?