Should I just give my boyfriend space?

Im sure he knows that you two don't talk as much and as busy as he is it frustrates him.When i use to work i couldn't wait till break to call my girlfriend or text her.But when i got really busy or she did and i wouldn't hear from her all day we both be kinda grumpy cause we missed each other so much! i really notice and appreciate the effort that someone is giving towards me.N if he is such a nice guy im sure he knows but working crazy hours with no time off can stress a man lol.Give em a little space n see what happends