I'm a 19-year-old female, and I'm starting to lose feelings for my boyfriend, who's 20. Should I break up with him or wait it out?

I've been with my boyfriend for nearly three years. We started as good friends in high school and eventually began dating. We both attended community college, and now I've transferred to my dream university. Since my school is local, we're not in a long-distance relationship, but it feels like we might as well be. He is truly amazing—one of the best partners I could ask for. He loves me deeply, treats me with kindness, and for over two years, my feelings for him were incredibly strong. However, since starting university in September, our time together has decreased, and our conversations have become less frequent due to our busy schedules. I find myself not missing him like I used to when we weren’t hanging out, and sometimes I feel annoyed when I receive his texts and don’t feel like responding. He hasn’t done anything wrong, so I feel guilty for my feelings, but I’m beginning to wonder if I still love him. I know that if you fall out of love, the right thing to do is to break up, but that would hurt us both deeply. He doesn’t have many close friends and views me as his main support, especially during tough times. I worry about how he would handle a breakup, given his self-esteem issues. Plus, I’m anxious about regretting my decision later on since he plans to transfer to my university next year, and I wouldn’t want him to rethink that choice—it’s a great school for his major. I’m considering two options: ending our relationship now to avoid stringing him along or waiting to see if my feelings change, as they might just be a reaction to the stress of a new school. I really need some advice!