some advice

see, i've been with this guy for about a year and a half, but the thing is, he says that "right now, i don't feel like you're the one" ... so i'm like "we're too young to even think about the end"
so iunno
what can i do to change his mind?
and please nothing about fucking because he (as weirdly as this seems) won't sleep with me and he's not gay...

No shit it's his problem if you're a cow.