So my ex wife and I share a nesting arrangement whereby I rent a nearby house (where we both stay during our away weeks) and we take turns transitioning in and out of the marital home - where my 16 yo daughter will reside full time for the next 1.5 years.

My ex's behavior has become increasingly odd, and my guess is she's trying to manipulate me into seeking an end to the nesting. Has anyone ever experienced anything like this?

She's been buying condoms and leaving them in the bathroom - along with a sign that says "Need one, take one". She's been leaving the torn condom wrappers in the trash cans...

She's also been creating art (paintings) using sex toys - an example - she made a painting and used a dildo for the body of a peacock. She painted the canvas and dildo, attached peacock feathers, etc and hung it on the back of her bedroom door facing out into the hallway of the shared rental house. She even affixed an alarm to it (one of those magnetic contact window alarms) should I try to remove it.

I've been ignoring everything and not giving a reaction of any sort, but I fear that this behavior will escalate.