Neglected and alone

My boyfriend went to a different town for college this semester and he’s always keeping busy: classes, studying, gym, and being with friends. He texts me, mostly when I text first, and when I want to talk to him or call him and have a meaningful conversation on the phone he’s out with friends or busy. Things aren’t really the same anymore, and I expected change, but I feel so alone. I told him how I felt and that I wish he’d tell me he loves me more often and call me Atleast for 5 minutes a day, but it hasn’t happened. How can I get unattached to him? I feel like I am too emotionally attached and I don’t want to depend on him for my happiness. He’s a good guy, I tried as hard as I could not to make him sound bad because he’s not, we’re just having trouble with this, and I personally want to depend mostly on me for my own happiness and self love. I want what he gives to just be extra.