No future with bf?

Everytime I try to bring up our future, my boyfriend quickly shuts it down. I'm starting to think maybe he doesn't want a future with me. He says he loves me so much, he's so romantic, he sends me long messages saying why and how much he loves me, but i really start to question it when I get shut down. If he says he loves me and that I truly am the one for him (like we've never gotten in an argument or anything ever) why doesn't he want to talk about our future together?