He isn’t gonna but the ring I want

So I talked to my boyfriend and I showed up a couple ring ideas that I wanted when he proposes to me. We’ve been together over a year and talk about marriage. I wanted a opal ring that was kinda cheap but now that I have a lot of opal jewelry I wanted something different. I looked at some rigs and my heart was set on one and my boyfriend told me he won’t save up and pay for it. And if I want it I have to buy it.. He hasn’t started saving up and has no intentions to save up soon and It makes me feel like he isn’t wanting to be prepared for our future. We’ve talked about it and he acts like he has it under control but he has $0 in his savings account