You shouldn’t have to ask him where it’s going. He knows and, if he sees you in his future, he will tell you.
You shouldn’t have to ask him to love you. If he loves you, he will tell you.
You shouldn’t have to ask him to marry you. If he wants to marry you, he will propose. If he doesn’t, he won’t. Some women mistakenly think that a man owes them a proposal after a certain amount of time together. However, nothing could be further from the truth. You don’t owe him anything and he doesn’t owe you anything either.
You don’t have to prove anything to him. Your essence should be enough. He should simply enjoy being in your energy. Anything else is a bonus, whether your income, education, beauty, or anything else that many women think men put a high value on.
This may come as a shock to you but, most people know where a relationship is going very early on. While there are some exceptions, most people know within the first six months whether they want to marry someone or not. There are some exceptions and there may be logistics that need to be sorted out. You should never have to plead your case or beg anyone to stick around- romantic or not.