We're not. But Brentford and ManU are.
It entirely depends on the conversation with the agent. Maybe Eriksen doesn't fancy coming back to Spurs after all, and told his agent to tell us that.
Or perhaps said agent had an idea of Eriksen's targets for wages and match time, and they were miles off what we were prepared to give him -- as good as Eriksen still is, don't forget that there's no obvious place for him in the current Spurs system so Conte would have to change things. You'd do that for a 24yo Eriksen, sure, but a 30yo?
For whatever reason, it's extremely unusual for a negotiation to have so few unknowns -- Eriksen knows exactly what he'd be getting from Spurs, while Spurs know exactly what they'd be getting from Eriksen. If Conte, Paratici, and Eriksen don't think it'll work out, there's no point beating around the bush.
I'm disappointed, of course -- if I wasn't a romantic (and die hard masochist) I'd have stopped supporting Spurs years ago. If he's not coming back to us, I really hope he stays with Brentford.