Kristin, she's got to learn to miss you. That will never happen as long as she knows she can just drop by whenever she wants. I would tell her to respect your privacy and no longer show up unannounced. Then I would change the locks.

Me: 60 w/ S18, D24, D27

M: 21 years; BD: 06-14-12; S: 09-10-12; D final: 03-17-14; XW:57