Proposing???

I desperately want him to propose, we’ve been together for 3 years but we’ve been best friends for 10 years. I just want the ring on my finger because I want it to be like this is and will always be my lady. I’m fine with waiting to get married for a few years. I know he’ll do it when he’s ready but I’m so impatient. Do I keep asking him about it or do i just let him do his thing and let him do it when he’s comfortable?