thoughts?

My boyfriend of three years (and then some) have been talking about buying a house together, I love the idea of it but told him I want more from our relationship (as in a ring) before we buy a house and move in together because I see that as a big step. He decided to just buy a house on his own, which is fine! He now keeps talking about us moving in assuming that I'm ALL for it. So my question is am I in the wrong for wanting to at least have a ring before making the next step of moving in together in the house he just bought? I feel like if we just move in together it will be too comfortable for him and he will never see a need for change or getting married..thoughts?