Is he ghosting me? or is he just busy?

I’ve been seeing this guy for about 6 months and recently it feels like he’s starting to pull away. There was talk of dating a little over the past few months but never fully went deep into that talk. We’ve texted almost every single day since March especially when he went to his football camp before going back to school but we’ve been back for about 2 weeks and I’ve only seen him 3 times and each time it was mostly just sex and then hanging out for an hour before he said he had to leave, (usually because it was late at night and he had to be up early for football). We hung out almost every day this summer and there never really seemed to be a dim moment between us. A few days ago I asked him if he we could be fully exclusive and he said we basically already ate and it’s not changing anything for him but he’s not going to be very available which seemed reasonable because he has football all the time and a super hard major but he stopped answering my texts about a day ago. He’s been super stressed out about school and football and hasn’t really been himself but we still Snapchat all the time and I’m still his #1 on snap but we don’t talk, should I reach out again and ask how he’s doing? Am I over thinking this? Or is he ghosting me?
Is he ghosting me? or is he just busy?
Post Opinion