work stuff

Right now at work my availability is set that I'm available every day of the week all day. Of course they don't really schedule me every day of the week but pretty close. 
That being said I really want to make it so I'm not available on at least one or two days of the week. Would that be like wrong of me to do? I just feel like I haven't had time for anyone or anything this summer. Especially my boyfriend. We live about 45 minutes apart and I haven't seen him in about 3 weeks because my days off never line up with his and it SUCKS. 
Any advice on this?