21 days..

So it’s been 21 days since I’ve last met up with my boyfriend. Mind you he only live a small amount of minutes away from me. He works from 5am - 6pm (usually) and he’s told me that he comes back tired. Which I get... but out of 21 days he couldn’t sacrifice ONE just to come and see me?? It’s really getting to me and I’ve vented to this various times and he tells me he’s sorry but never does anything about it. When we do see each other we make up for it with a lot of cute things and sex but after that days always go by and I have to wait till he actually wants to see me... idk is this normal at all??? It hurts because I always see my sister and her boyfriend together and he lives 2 hours away but he’s with her almost everyday and it sucks to keep comparing... what do I do? What could it mean?