boys are rlly stupid

Ok so me and my ex have been off and on for literally two years right, mainly bc we just couldn’t do long distance. so i’m finally moving down to his state (not bc he’s there’s that’s just genuinely the college i want to go to and it just happens to be close to him) and as the time gets closer and closer he just gets more and more distant lowkey. he’s saying he’s busy with work, which i get… i work full time this summer so trust me ik how hectic things can get, but i still make time for him and im just wondering why he can’t do the same to me??? it’s just so frustrating bc i rlly do love him and everytime i bring it up it’s the same excuse of him just being tired from work or not free but it just makes me more and more accustomed to the feeling of him never making me a priority and i hate it. it makes me feel like a little kid waiting for my dad to come home for my bday but he just never does. I want to put my foot down (i have in the past but not anything too drastic) and give him an ultimatum but im scared he’ll choose something (or possibly even someone idek) over me and it’s so scary. i love him and i rlly rlly don’t wanna lose him, even if he can be annoying sometimes. maybe he’s scared of finally being able to be together for real in person but i feel like a person who really loves someone else wouldn’t be scared? and even if they were, shouldn’t they work past that if they truly love and care for that person to make it work??? idk guys should i just leave or try to figure out exactly what’s wrong :/