You should always, always choose the moment that he thinks there is a huge chance you wont propose, he might wonder 'hmm, This is a happy time for the two of us underneath the lights and enjoying the wine, have a taste of yours lips, maybe a sex afterwards', You talk about how you guys would do in the future and how you defeated all those scandals just to have a life with your baby man. And then when He said 'Oh I need to go pee',  That is the perfect time for you to pull out your little black box , Holding that ring and when he comes back from peeing, he is gonna be the happiest man on earth.

Rule No.2 Flirt to make him horny about you

Maybe take off your shirts, Show your big chests and strong arms, thick shoulders to flirt with him, We all know that A man's dick tends to take the highland of his brain when he is horny. So seduce him as hard as you can, since you two have already gotten so far, Guess it isn't hard for him to have a boner with you.

Rule No.3 Only pure love deserves a marriage

Only love deserves it, Otherwise you guys are just seeking for that feeling of getting married, but not the responsibility and loyalty for each other.

So dont get married if you feel zero love between you two, It can be confusing sometimes for us to identify it is love or just craving for sex. So, choose wisely while you can.