What will happen between us?

Me and my boyfriend have been together for a year and two months now. We’ve always spent hours together and always been happy around each other. But now with school starting again I barely see him. I’m always asking him to do things even if it’s just for an hour or two but he always comes up with the same excuses, “I’m hanging out with my friends today.” He’s always leaving me for them. Like he’ll come to my house and be like I can’t stay long I’m meeting so and so soon. It’s like he can’t say “no, I’m hanging out with my girlfriend today.” He’s always ditching me for them. I’m always making time to be around him so why can’t he do the same. It’s like he doesn’t even want to be around me anymore. We use to be crazy for each other. I love him so much and he tells me he does too. But I don’t think he means it anymore. One of his friends’ girlfriend has been my best friend for 7 years and her boyfriend is always taking her along with them to hang out . But my boyfriend won’t take me anywhere with them. Being around him would always make me happy and put me in a good mood, but now that I never see him people keep asking me if I’m okay and that I always look like I’m about to cry. Every night I start worrying that he’ll break up with me and so yeah, I do cry. I cry every time I think about it. Should I be worried? I really can’t lose him. What should I do?