Concurrent Logins (Score 1)

If she already has a netbook then let her keep it, chances are you're using XP, google concurrent logins, this hacks XP with TS files to allow more than one login at a time. Then she can MSTSC from her netbook to your workstation without disrupting you. Cost $0, takes about 10 minutes and a few reboots. As far as the woman playing being a phase... my money is on her frustrating you to the point you give it up before she ever does. She enjoys the time with you, in men's minds she's an invader. Good luck with it.