How does he SEE you?
Indeed, a very good result--but your one-card answer tell you how he *feels* about you, it doesn't tell you how he views you, and that's important if you get the King of Cups. He feels mature love for you--but whether he can express that to you, make it known and act on it all depends on how he *sees* you. If, for example, he sees you as the formable Queen of Swords, or as the demure and immature Page of Cups, then whatever his feelings toward you, he might be reluctant to express them. If, on the other hand, your are his Queen of Cups, then he might, indeed, be on the verge of proposing marriage. How he sees you will tell you as much if not more about his intentions than finding out how he feels about you.
Here's a spread you can use for clarification after you get an answer to that question:
***5***
*3***4*
*1***2*
1 = Him
2 = You
3 = What is important to him
4 = What is importnt to you
5 = The joint solution or outcome