Is This Just Totally Weird Because It Sure Feels Like It

I`m 17 so I`m older than a lot of the girls on here. Although I`m probably not doing that great since my boyfriend is 34. He doesn`t push me into doing anything, and he`s a really sweet guy. I just feel like I`m rushing into things too fast sometimes. He`s so sweet and I trust him, but I really feel like something is wrong. He wants me to marry him and I want to marry him sorta. But it`s so weird, maybe it`s because I never expected anything like this until after college. I`m still plaining on college, 4 year animal science degree. It`s just feels so weird. Maybe I`m just over analyzing things or something.