Hi Gordie, You got lots of good advice here. She isn't going to let this go. You can ignore, and that's all to the good, but I expect an escalation of epic proportions as you get closer to move out day. You may well want to lock that bedroom door as I suspect you're going to wake one night to find yourself not alone.
The other thought I had is this: how would you behave with the teens if they kept pushing your boundaries? She's a teen right now, as near as I can tell from her behavior.
Just my thoughts. Stay strong xoxoxo
M 20+ T25+ S ~15.5 (BD) BD 4/6/15 D 12/23/16
"Someone I loved once gave me A box full of darkness. It took me years to understand, That this too, was a gift." ~ Mary Oliver
