AITA for refusing to pay half of the furniture cost for things I don’t want or need?

My girlfriend and I moved into the apartment we currently live in around two years ago. The apartment was unfurnished apart from the electricals in the kitchen (Fridge Freezer, washing machine and oven) so we had to but most of it new.

I had a fairly new TV so I brought that, my gf had a new chest of drawers so she brought that. Everything else we bought together so we bought a sofa, bookshelf, new tv stand, bedside cabinets and a dining table and chairs.

We’ve added other things since then for decoration but we have everything we need and it’s in good condition. My gf mentioned last week about wanting a new sofa.

The one we have is still in great condition and I like it so I said I don’t really want to be replacing something for no reason. She mentioned looking for a nicer one but I just repeated again it would be wasting money.

She mentioned also looking for a new chest or drawers and bedside cabinet.

I mentioned she was free to buy new ones but I won’t be paying towards them as they’re not needed and they’re only for her. She said I should be paying my half since I also live here but I just pointed out the drawers are only filled with her things and the bedside cabinets we currently have are still in good condition and don’t need replacing.

She was still going on about wanting to replace them but I just pointed out it’s wasteful to replace things in good condition just because she feels like it. I said I’m not willing to waste my money on things that we don’t need.

She got annoyed and said I should be paying my way. I asked if she’d pay if I decided I wanted a new tv and bought an expensive one but she said that’s different but wouldn’t explain how.

AITA for not paying towards the furniture?