Riley demonstrates quite a bit of enthusiasm and new strength while fighting, while Buffy simply orders Spike to stay out of her way.
[1] At the hospital, an intern, Ben, informs Buffy and Riley that Joyce will be fine, but that doctors are not sure what caused her to collapse.
Dawn is playing with a stethoscope and when she listens to Riley's heart, she finds that it is racing much faster than normal.
Just after Overheiser finishes sewing up Spike's skull, Buffy arrives with Riley and a fight ensues.
When Riley suffers a heart attack and collapses while fighting Harmony, Buffy and the doctor immediately turn their attention to him.
With the humans distracted, an enraged Spike escapes with Harmony, ranting about his disgust with Buffy and his weariness with how she is seemingly the source of everything wrong with his life.