I moved in with DP (he's 34, I'm 33) about a year ago. He owns the flat, has lived there for 6 years, and his best guy friend lived with him as a lodger for about 3 years. The flat is very.. bachelor pad. It's sparse. All white and grey walls and very basic, functional furniture. A lot of the furniture is from Next, John Lewis and IKEA, and despite a lot of it being originally quite expensive, it's all very tacky looking. Think chrome and shiny black/white plastic covered mdf. He hasn't changed or added anything decor or furniture wise since he moved in. (Which is obviously totally fine).
I've tried suggesting updating a few bits to make it look more homely and grown up (and less tacky/teenage boy) but he refuses, says it's his furniture and he likes it. Aibu to go out and buy a few things as a suggestion? (With my own money). The coffee table especially annoys me as it's that super cheap one from Ikea, with really sharp corners, and it's a dust trap (and pretty much only ever dusted by me). I think ultimately he can't be bothered to do the shopping/looking on marketplaces part.