I love him and he's not sure

Please no judging, as this is hard on me already. I have been dating a widower for almost a year now. He's 47 and I'm 30. (He lost his wife 18 months ago.) we have a phenomenal relationship, although long distance, I couldn't be happier. I'm divorced, after being in a relationship for 10 years married for a year. I didn't realize I could find happiness that soon. We are comfortable with one another, we are extremely honest, and our communication is on target. As uncomfortable as it may be, we discuss it. For the last couple of months, we've been discussing me relocating and moving in with him and his son. Although not right now, but in the future, ie in 2 years. The only issue on hand that I have is, he's mentioned to me hell "eventually" fall in love with me. He "likes" me very very much and sees what a beautiful future we can have, but he doesn't want to drop the L bomb. I've told him I love you, and his response always is I like you too. I'm starting to get really sad, and am starting to reevaluate the relationship. He has agreed to try for a baby since that's all I've ever wanted was to have a family of my own. He told me he couldn't see another woman being the mother to his child, and that I'd be a great influence on his son. He recently mentioned he's extremely happy with the idea of spending the rest of his life with me. I feel like he does love me, but he's told me he loves his wife. Which I completely get, he always will. But I don't know or get why he won't tell me he loves me. And i don't know if I can wait much longer. Like I said I'm 30, and spent 10 years with a man who didn't appreciate me. And I don't want to waste more time with someone in "hopes" that he'll eventually fall for me because "it's gonna happen, but not now". I'm just an emotional wreck right now and all I do is cry thinking that this relationship is going to turn up to be a disappointment like my last relationship. And that scares the crap out of me.