Rufus's friends were complaining that he was spending too much time with Robert, these days. Rufus would argue that there's no such thing as too much time with Robert, but he'll admit that he's been neglecting his mates in favour of his boyfriend, lately.
So while his friends are off arguing sports somewhere, Rufus has decided to take a quiet moment away from loud shouty people and try to enjoy his beer. Which isn't, in fact, very good.
He sighs and smiles awkwardly at the man next to him, "I think we're meant to have fun at these places."