Last night I noticed that the shade in the bathroom window was up which is not normal. It was dark so I closed it still suspicious.

I just looked out that window. The screen in the window was pushed up to the top of the window and there are used matches on the roof outside the window. Now we know Puke smokes at BM's but is not allowed here. I sent DH a text playing stupid asking if he had been out on the roof with matches. No but he knows who it was. Puke. He'll have a talk with her tonight.

BUSTED!!!