My heart is in a million pieces

My boyfriend and I have been together for 10 months and everything has been great, or so I thought. I had a choir concert on Tuesday that he came to and made a super adorable post on Instagram about and it seemed like we were perfect. Now just 4 days later, he's "too tired" after work to talk and making me feel super unwanted. Tonight I tried to talk to him about it. I was crying, and usually when I'm upset he cries, but he didn't. He was stoned faced. He said that he was sorry, and that he loves me, but as the conversation went on, it felt less and less like that. He told me that his feelings aren't growing (he used to tell me that he loved me more and more every day). I told him I believe when you love someone, you wake up everyday and choose to be with that person. He told me that he'd "let me know when that changes". He'd given me a promise ring for our 6 months and I asked if he still meant what he'd said and he very hesitantly said yes. I asked how he saw the future, and he said "I still want 3 kids." To which I said, "with me?" And he said "I want 3 kids." And I said "you know saying that you want 3 kids is different than saying you want 3 kids with me?" And he said "I know." But then a couple minutes later, after that had made me cry, he said "I still want to get married and have kids with you." But the way he said it made me feel unsure if that was true. And again, he also point blank said his feelings for me aren't growing. His last girlfriend he dated for 2 years and then just stopped loving her. He got tired of her and bored. I feel like that's what starting to happen? But I'm also so confused because how has that all of a sudden happened since we saw each other on tuesday? I told him I was scared and he said he understand and that I had good reason to be, but that it's stupid to be scared all the time. This wasn't the reassurance that I had nothing to be scared about that he would normally give me when I get unreasonable. Just as I reassure him when he does. But this time, he said he had no way of calming my fears. 

The last thing he said before falling asleep (it was 12:30 AM and we'd been facetiming since we couldn't have this conversation in person until we see each other next Thursday because he's working/has family plans until then) was that he's tired of me talking bad about his mom and brother (which I don't do?) and pushing him to the background (I try to make plans all the time?). I told him that I love him family, and I'm sorry if it came across differently, but that I get frustrated with his mom (because she is super controlling: makes him live at home and commute to college; limits all of our dates to 4 hours), and it's hard for me to see the good in his brother (since I barely know him and 90% of what I know revolves around the fact that he abused my boyfriend when they were growing up), but that I will make an effort to focus on the good things they do. And I told him that he means the world to me, and while yes, I have been busy with college applications and school responsibilities, that I want him to spend more time together and I want to show him how much I care. This last thing just really confused me because if anything, I'm the one that's been constantly trying to be making plans while his part-time job (that he told me weeks ago he was going to quit to find another one with better hours) has somehow become a full-time job. I also don't see how he can be mad at me for "making him feel in the background" when literally 100% of my free time is centered around seeing him. I can't even tell you the last time I hung out with my friends to just hang out (as opposed to like school projects and what not). When I'm not talking to him or trying to see him, it's because I'm either super focused on a scholarship application or something with an approaching deadline or I'm doing a school thing (like caroling gigs with my chamber choir). Those things aren't exactly optional for me, and we talked about that before and he allegedly understood? 

I just feel like this is the end and that petrifies me because I love him like I've never loved anyone before, and to me, it's still growing, and I want forever with him. I feel so blindsided by this whole situation. I can't sleep, I can't stop crying, and I seriously think my heart has been shredded.