You’re not engaged yet, don’t compare the two. And for your own you’ll iy”H be very excited, but more nervous as well.
Personally I think that some people are more positive than others, only you know if this is so.
And if he’s Mr. Perfect dating a little longer won’t put him off, but you need to let him know that you can’t make a lifetime decision in a month. Then think hard what needs to happen for you to comfortably say yes, and if you think it’s impossible you’ll need to break it off.