Anxious

I'm having some seperation anxiety, and I'm not sure how to deal with it. I usually only get to see my boyfriend on the weekends, because he's so busy, and he usually doesn't text much because he's usually doing things with his family, and his phone always cuts off our calls because it's old and junky, (I don't want to hear how he just "doesn't want to talk to me", I've known him for years and that's not him) and I just miss him terribly. Please help me on how to deal with this, I get upset easily and he's the love of my life, and not always available to talk since he works long hours. Our relationship is happy and healthy, we've just had our 1 year