Ryan Bridger's Links
Ryan is totally obsessed with Sarah, he feels there's something about her that makes her special. Which is somewhat of an issue for him, as she doesn't really feel the same about him, he generally believes that he can change her mind and that she's only playing like she's scared of him. He'll stop at nothing to get the attention of his "goth princess" even if it means he has to chase away her friends.
Sarah is absolutely afraid of Ryan, she sees him as a creepy stalker who's obsessed with her, and actively tries to avoid him.
Ryan's opinion on Amy is that she's "fun to toy with". He doesn't hate her, he just likes messing with her head every now and then. He mostly tries to hang out with her because he knows that Sarah will definitely be around, unfortunately for him, so will David.
Amy finds Ryan to be pretty creepy, most of the time she avoids him, doesn't really work out though... She will sass him from time to time when she feels he deserves it.