Tristan is a very rough individual. he is always conflicted with himself. he is rude, overbaring but also passionate. it is very hard to get him to love anything but once he allows emotion to take control he will stop at nothing to protect what/who is his. in the case of his relationship he has with Jake (the girl) he is very jealous and protective. but also easily annoyed by the very thing he is in love with. 

also the voice i'm looking for for him is somewhere around the voice of Sebastian Michaelis from Black Butler try to come as close to that voice as possible. again though this is not paid now, it may become so if this little show makes progress.