Feeling Bad

I accidently damaged Mum's new favorite floral cardigan when I was retrieving my jacket just now. It was a knitted cardigan. I think the zip of my jacket got hooked onto the cardigan thus as I remove the jacket from the rack, the thread of the knitted cardigan was being pulled at the same time. I m feeling so bad now. Mum likes that top very very much and it was the last piece when we bought it at F21 that time. Mum din scold me, but I could see from her face that she was quite upset. I also couldnt find it on the online store of F21. I am feeling very sad and bad now.