You are focusing entirely on the wrong things.

Leave the relationship things for her, this is nothing, that you should care about. "I love you.", "I want to marry you.", "I want children.", "Let's say good morning and good night to each other every day" don't bring these things up first.

What you should focus on is: your career (uni, work, whatever), your hobbies and yourself (working out, sports, whatever you like). And then you invite her into your life, have fun and hook up. Nothing else.

I would back off a little bit. If she follows you, that's good. If not, then I don't think, that she's that into you. The consequence would be, that if she fails to reciprocate your feelings on at least the same level, you might want to look for someone else, that does. No need to stick with someone, that only is with you, because it's convenient. She might leave you one day for a guy, that she really loves.

Generally, don't chase someone, that is running away from you.