juju ... i can absolutely, 1000% guarantee that Tim was not referring to you when he used the phrase "bad juju". His reply to you was also definitely NOT A CRITICISM OF YOU. It's his way of saying that he assumes you're a good person and hopes you realized he hadn't meant you.
juju is a term related to magic and mystical spirits. similar to karma. if you follow this link, you'll see what i mean and understand exactly WHAT (not WHO) Tim was talking about.
http://en.wikipedia.org/wiki/Juju
there is absolutely no cause for hurt feelings.