Distance and work

So in truly stressing about my relationship. Currently we are three hours away from eachother until August and I miss him. I miss the sex. I miss cuddling. I miss his presence and being under him. But now we are struggling to make time to communicate we have s small window of time for us to talk. He works from 10pm-7am and I work from 5-11pm. He sleeps during the day but forces himself to stay up so he can talk to me. I'm just used to talking to him all the time.