I think you need to be careful not to get into a situation where you're the only person asking for time together and he's the only person asking for time apart. The first year at Uni is always a time when people change and move on from the way they were at home, and you need to give each other space to do just that. Sadly often that means that relationships don't survive the change, but there's no need for that to happen. The two of you need to talk honestly about what you both want out of the relationship, without any accusations of being uncaring or threats of breaking up etc. Spending less time together needn't be a terrible thing, especially if it means that he'll feel less like he's being forced into it, and you feel less like you're constantly asking for attention and being rejected.
I've been in a similar situation, except I guess I was probably in your bfs place- wanting to spend more time with friends, and more of a sense of independence, but feeling a constant pull from my gf to spend time together. The accusations of not caring etc just made me want to spend less and less time together and spending time with her just started to feel like a chore that I was doing just so she wouldn't get upset. Finally we talked about it, identified that we were getting into a habit of her always being the one that wanted time together and me always being the one that wanted time apart. When we thought about it, really both of us needed time together and time apart, but I wasn't getting a chance to ever want time together because she was always nagging me about it, and she never got the chance to want time apart because I was always rejecting her. I'm not saying that everything's become perfect since we decided to work on that, but I have noticed that within a week or so of her not asking to spend time with me, I suddenly wanted to see her. We're arguing a lot less and we're both a lot happier.