Bf said he wanted to get us promise rings and then never mentioned it again ?

I made a joke about it today because I saw these $2 rings and I was like “this is what we should get” and he texted “we can still get them soon if you still want to” I felt kind of hurt by it because It was his idea , and now he’s putting the choice on me. We’re moving in together and he said he wanted to get it as a sign of commitment . What do you guys think about it ?