Mom found the femboy drawer 😔 (help ;-;)

So I'm an 18 year old, closeted gay, boy who sometimes likes to wear girly clothes. And recently my mum (while just snooping in my room I guess) found where I keep all of it. She confronted me about it the day after, and she said she was weirded out and asked if I was being coerced into stuff online - to which I said no, and that I'm an adult and it's none of her business, and that I dont want it brought up again (which I think is fair lol). It's been a few weeks and I thought it had been forgotten (or at least that we had come to a mutual agreement that it's not her concern) but shes started bringing it up again. Like a package came for me the other day and she said something along the lines of "I hope that's not something for your bottom drawer ewww" and today she spoke to me and said that she couldnt get the drawer out of the back of her mind and she felt grossed out by it. I dont know if she thinks I'm closeted trans (shes not exactly super open to that sort of stuff) or what but I have no idea what to do ;-; I feel like I cant just pretend it isn't a thing at this point :/ But how can I explain that me, an 18 year old guy, sometimes likes wearing girly clothes because it makes me feel happy when I havent even come out of the closet yet 😭😭