...Hmmm. Sounds like a plan. Should I practice my evil laugh?

I know him, I just haven't lived with him. And that can make a big difference - I got along with my sister much better when we don't live together, for example.

More emotionally stable, yes, but trust/intimacy issues hit right at Lelouch's weak point. He tends to hold people at arms length, either because he doesn't trust them, or push them away and lie to them "for their own good". And so he freaks out when people push past that barrier. Notice how in basically every romantic moment in canon, it's always the other making the first move, and Lelouch either freaks out and gets flustered, or is passive and just goes with it without any sign of reciprocation. Lelouch only acts first when he has ulterior motives, and it's more about manipulation than affection. And it's not so much that Suzaku is aggressive as that he's more emotionally demonstrative - he acts on what he's feeling instead of repressing. ...All that said, it depends on context, since it's not a clearly cut situation.