Long Distance Relationship/ W an Athlete

Okay so I just need some advise. So my boyfriend goes to school in Iowa and Plays football for his college and I go to school in Texas. He was just here for the summer because he's from here, and we spent so much time together! It was great but he left on Tuesday and started camp gearing up for the season. I haven't had like a full 5 minutes just to talk to him. This is my first time dealing with this. I started dating him in November of last year so right about the time the season ended. How do I deal with him being so busy? Is it wrong that I feel upset about him not having time? I just want some advise on dealing with long distance in general as well as dating an athlete who is busy this time of the year! 
Thank you guys so much in advance❤️