I am feeling selfish

But at the same time I’m not and it’s making me have doubts about marrying my boyfriend one day he wants too buy me a ring that’s just a little over 2000 dollars when honestly I’d rather have something from Walmart and he’s like no do you wanna base our love on fake things or real things I’m just like ugh I could careless where it came from or the price really and now I’m just like thinking too myself idk if I even want too like I threw away all the wedding ideas and plans I had came up with the other day because I just don’t know anymore and I feel bad for it I kinda feel like I’m over reacting or if he is I just really don’t know I need advice