I think I understand.
He sounds like he just can't be bothered to get you a new ring, he already got you ONE, ffs, why would you want another?!
So he's either tight, or he doesn't think you're worth that much bother.
He's spoilt something that you've obviously been looking forward to, and now your dream proposal has been shit, you're probably wondering what else is likely to be shit with him.
Either that, or he's a thoughtless numbskull who really doesn't understand you very well, despite you having been together 5 years.
I had a similar situation years ago - long term boyfriend got me a ring for my birthday - I had to actually ask him if it was a birthday gift or an engagement ring (how romantic, NOT
) and he said "well, that's what you wanted, isn't it?" So no actual proposal, even. Just a "here's a ring, up to you which finge you put it on".
Funnily enough, that didn't last and we never got married.
Current DH - also no proposal but we decided to get married when I became pregnant with DS1. Also not romantic - but I'm not a big one for romantic gestures, so I'm not that bothered.
I think, as others have said, your biggest issue here is whether your "happiness" at being engaged outweighs your disappointment in terms of how the proposal went - if it doesn't, then fgs don't marry him, it's not going to work out. Do not "make do" with this one, please.