☸ - Issei loves you utterly and completely, no question about it.
☸ - He has a crush on you, or a kind-of-crush, or at least thinks you're attractive.
☸ - You are his BFF. Seriously, F.
☸ - You're friends with him, although you could be a bit closer.
☸ - Acquaintances who've had a couple to several conversations with him. He wants to know you more.
☸ - Acquaintances who've only had one conversation with him. He may think positively on you, or have no real opinion.
☸ - He dislikes you, or is scared of you. Or both.
☸ - Either he really, truly hates you, or you're Tohsaka.
Sorted alphabetically within each level. In progress: all/more explanations to be added. Last update on 5/16/10.
( Yes, I did list everyone who's ever spoken to him not-anon. )As usual, if you comment, I'll try to get your character's explanation up as soon as possible.