My ip address

[slowlyunruly]

When I let someone into my computer to assist me set up a "online radio station" so that I could listen to my own songs while I was playing a game, someone now knows my IP address. There was an internet romance between us, but we've since ended it. Now she's harassing me about it, despite the fact that I've changed my name, profile, and account, started a new one, and omitted any identifying information. Even if she knows my IP address, how can she see me in-game?