How do I casually bring up hanging out to a guy without being clingy?

I have been seeing this guy long distance for over a month and he is so perfect when we are together. Problem is, he lives 2 hrs from me, and works 80 hrs/wk so I don't get to talk to him much during the week. Last week when he came out of his way home to have lunch with me for 2 hrs he said he was sorry and was going to be better about staying in touch during the week... got a text thursday that said he was alive and would call me but he didn't!! I was a little upset, but thought work prob had something to do with it... after having a panic attack I decided to break down and call him (something I hate doing first). But to my surprise he was so excited to hear from me and kept asking me about my coming weeks/this weekend but I couldn't fig out if he was being nice or trying to plan something with me? He also told me he was sorry for not talking much that week and he would be better but if I ever got the urge to call him just do it, he didn't care what hour...even if he was asleep he would love to hear from me. He is 23 and I am 25 and he once told me I was intimidating... so I really want to see him this coming weekend but how do I do it w/o looking clingy? Or do you think he is just shy and I need to take more initiative?