For a moment, Sarah Jane stands there staring at him. She doesn't want to go back to Milliways. She'd much rather stay here with him. But at the same time, he seems so lost that it would be wrong to simply abandon him.

She smiles weakly for a moment before standing on her tiptoes and curving an arm around his neck to kiss him.

This is the only proper way to end a date, after all. Even if it had ended minutes earlier.