I think that they should have already met, as they are in the sixth year so it would have been a bit odd that they didn't know each other.
But maybe they could meet up and we can explain in the roleplay that in the past Icky has tried to get rid of her ( in the sense that he tried to make her hate him) and failed. So I don't know whether you wanna start a thread somewhere and we can begin or maybe I shall just post in the "why screaming could be a good idea" thread. In fact I may just do that since I like creatures and all.