Your question can be answered by asking yourself, "Do I love this woman?" "Can I imagine my life without her?" If you answer yes, then what's the big deal about saying so? Let's be real here. If a man doesn't say "I love you," but he wants a long term relationship, that really means nothing more than," I like the convenience of having sex with you, as if you are my fiance---but never mind whether I will marry you or declare my love for you...or actually love you---period. I'm here. Isn't that good enough?"
Well, darling, the answer is "No, it isn't good enough." Not at all.
A man who asks this question really needs to "Man-up" and say, "I love you," or he needs to find someone else who is willing to be his convenient sex partner. No self-respecting woman who wants love for the long term would ever settle for less.
The truth is: A man in love is thrilled to let the whole world knows how he feels about his beloved. Men in love are actually very romantic...and that's a good thing.