I’m not sure what to do.

I have this feeling in myself that won’t go away. I don’t wanna be bothered by it anymore. But I just can’t explain or express it to him. I’m scared actually. It’s me being selfish wanting him to propose to me. People tell me I should talk to him about it but yall don’t understand how uncomfortable it would make me feel for putting him on the spot. I don’t want to do that to him. No. So I just have to sit and wait around for something thst may never happen 😔😔 I’m just afraid if I ask him about it he’s just gonna reject me.