Help!! I’m I paranoid or do I need to worry!?

My cat is obsessed with this corner in our house, we don’t know why and my fiancé attempted to clean the area so she would stop trying to get there (she will literally push or pull anything there so she can rub all over the wall. He used windex mulisurface cleaner and some febreeze. This was about a week ago. Today when my cat shimmyed into the corner I notice she was licking the wall. Plus this be toxic for her? Should I be concerned? She’s acting normal I’m just worried.