Doxie .. I think you man sound like he is playing a bit of a game with you and I think it is unfair ... !
The more a man mentions marrage/engagements ect. ect the more we get excited thinking about it, then we dont shut up about it ! so he should just be straight with you and just say ill ask when the time is right .. not tell you little white lies !
I am in a simlar position .. i can not wait to get married .. I love my BF to BITS and we get on amazingly we have been together almost 10year (since I was 16) .. before i met him I was a real wild child not wating to settle down but now I can not wait for the wedding and the babies and the rest of our lives together .. but like you I just need my man to ask the question .. we talk about it all the time and have even talked about were we are getiing married ! but just no bling yet .. I am sure the time will come when he is ready to ask so until then ill have to be patient ... that can be hard sometime but for the best as we both have to be ready to make that MASSIVE commitment to each other ... good luck with your man .. I hope the suprise comes soon for you