Whatever you do, please do not quash his passion. As an artist I've given up my passion more than once for women and it just breeds resentment and unhappiness. Anyone that finds their passion in art, or hobbies, will become somewhat obsessed about it, that's what makes it their passion.

My advice to you is to try to stop being frustrated and expecting him to give it up for you, but instead encrouage it and support him. Appreciate what he is and try to enjoy or appreciate his passion for this craft. I cannot say for sure but the I believe the best way to get him involved more with you is by showing you accept him for all he is... all of his obsessions and his ways. Nothing else will do. If you can't accept someone for what they are and appreciate it with the good, bad and even ugly, you need to move on to be honest.

I'm not trying to make you out to be someone terrible, but the truth is, this is such a common problem in relationships. People too often are focused on what they are NOT getting in a relationship and stop focusing on what they can give to the other so it falls apart. When we give to the other what they need, typically if they do indeed love us, they become more willing to reciprocate whether that be in talking, supporting you or even making more time. Right now you're a frustration to him and he loves his craft. But when he is doing his craft he has the stress of worrying about "making you mad" whether that is accurate or not, his reality is that he perceives that it angers you when he does it too much. Do what you can to relieve that stress and try to be more accomodating, you'll get more results that way.