a member

I need help. I know it might sound dumb but like yeah. Okay so, basically, my bedroom has ALOT of storage space because my cupboards are HUGEE, so some of my mum's things stay in my cupboard. On Monday, I lent my friend a pair of jeans, not knowing it was my mum's brand new POLO jeans. And she was so happy about it because she lost weight and things and she was so happy to fit in a small size so I feel even worse about it. Now, you may say - "oh just ask your friend to give it back" yeah see the thing is, we went on a leadership camp thing, we left on Wednesday and came back today(Friday) and I'm only now just realising that it's my mum's new polo jeans that she was excited about. I'm not able to get those jeans now because said friend lives like 15 minutes away and she's not able to come to the city I live in, and I'm not able to go to hers. The only way for us to get the jeans is for the two of us to link up, and my parents are strict when it comes to things like that. And now my mum is blaming the cleaner and things and I feel bad, but I genuinely cannot tell her about this because she doesn't usually allow me to lend people things. (I'm sick rn if that helps) What do I do?😭