yup those are roots don't worry about it much, it happens.
I am hoping the roots will reach down into the substate and produce more shoots, or is cutting and replanting the tops the only way to expand the stem populations? I dont really like how it looks when you chop the tops off, and then new shoots come out the sides of the base that remains. They get all top heavy looking in the shape of a "Y". But at the same time, this gives you a new plant, when you stick the chopped off top into the soil. I have read that if you cotinue to trim, the plant will bish out more and more until it looks good. Does anyone have a few tips or an link that explain how to trim, at what length, etc so it looks nice and natural and full, or am I making this all harder than it really is?