Boyfriend College - Reply if you can :)

Okay, so I’m 17. I have dated a few people before, but no one as long as my current boyfriend (8 mo). I’m in debate at my school and I do track and some outside of school stuff. College is next year. My boyfriend is really sweet, but sometimes I feel like he can be a bit... know-it-all-y? Like, for instance, I intend on attending a four year university (praying for a particular institution) out east. However, I don’t know what I will be majoring in, and feel quite comfortable taking classes in the college out east, and figuring it out then. Almost insistently, my boyfriend has been discussing community college for me with me. I by no means am changing any of my plans because of him or for him. The discussions always start out respectful, but they seem to escalate a tad to where I no longer would like to participate. For example, my mom went to junior college, and had trouble focusing on school, because there was less of a community identity, since students didn’t live on campus. My boyfriend insists on it not being an issue, almost trying to persuading me that I should go to community college. (Mind you, I am a 4.4 student with a near perfect ACT, and my finances do not inhibit me from going to a four year university). So I told my boyfriend that while I respect that community college is a path others take and that’s awesome, it’s not for me. He agreed. Yet, still, he insists on having the conversation and insisting he is right. It’s come to the point (not just with the CC things, but other things like it) that I don’t even want to discuss college related items with him. It just makes me feel terrible about myself. I can’t tell if I’m being overly sensitive, or maybe he can just come off that way, but I’d like to figure out why I don’t enjoy talking about this stuff with him, because it’s important, and this issue could potentially bleed into other conversations we have. My mom said she gets the vibe that he thinks he knows it all from him, but that could’ve been coincidence. (The boyfriend has his eyes set on an east coast school also, but insists if he doesn’t get in, he will attend a UC until he can). I don’t comment on his school choice or how I think he should explore his options, but he has no issue telling me that I should have backup options (I have them, for the record). So what do y’all think? Should I say something to him? Am I just being sensitive?