When a man is truly in love, his actions will certainly betray his self control and logic. There's no way a man will sincerely love you and his actions won't show it. As a lady, if you truly want to marry for the right reasons, pay attention to your boyfriend's actions more than his words. With men, words are very cheap. Most men grew learning the right words to say to get into a woman's heart. Winning a woman's heart however is controlled by a special hormone which only get triggered whenever they are truly in love. The hormones tends to make them less vocal and do more to impress their lover through body language and actions - an attribute commonly displayed by most male animals, birds and fishes.
The hormones also make them want to provide and protect - their masculine nature will come to the surface as tender but firm affection towards their female target and their strength in defining their prideful territory. It's a natural instinct for men. So if all you ever depend on is my boyfriend said this and that without verifying his motives through his actions, my sister, you are on your own. Men are born as natural hunters, it is not your position to chase a man for marriage.
A man that is willing and ready to marry you need no sermon to acknowledge his wish. If you are in doubt or confused by his words and actions, give him space. If he ever see you in his future, he'll come back to you. Nothing you can do to make a man love you for you - even if you succeed in getting him to put a ring on your finger, what happens after the wedding night? Think! A broken relationship is better than a broken marriage