Liked, definately, and there's no question she's sorry he's dead. But speaking from personal experiance(I am, at times, as socially oblivious as Agatha), if a friend has to point out to you after the fact that a guy was trying to flirt with you, odds are not good that he was one you had interest in.
That said, they got along well enough, and overall I think it had as much potential as any relationship that forms around 18-20(I recall, somewhere, it was stated that Agatha was around college age, so about 18-20). It wouldn't have lasted, but not because she was a Heterodyne and he was 'ordinary', and probably not because she's a Spark. It's like my main reason for staying out of the HP 'shipping wars: They're kids. Even if they hook up now, odds are that it won't be a 'forever' kind of relationship, unless they demonstrate solid chemestry together.
Re: China-Red Silk
That said, they got along well enough, and overall I think it had as much potential as any relationship that forms around 18-20(I recall, somewhere, it was stated that Agatha was around college age, so about 18-20). It wouldn't have lasted, but not because she was a Heterodyne and he was 'ordinary', and probably not because she's a Spark. It's like my main reason for staying out of the HP 'shipping wars: They're kids. Even if they hook up now, odds are that it won't be a 'forever' kind of relationship, unless they demonstrate solid chemestry together.