I've always felt a little ripped off by the Touched scene for exactly this reason. Spike's her last, best hope, and all he can do is repeat what she's already heard from Riley? I'm sure she didn't forget that Riley said it. You always remember that kind of thing from your exes.

It's laziness from the writers, who already were cutting corners everywhere to fit everything in. *sigh* I just wish Spike had been given a real "only Spike" moment there. But I'm biased. More Spike! More!