Hi Canary,
I'm so sorry for the pain you're feeling right now. It takes a long time to get over so you just have to be patient. I understand what you mean about missing his company and his calls. It took me several months after the breakup to no longer miss talking to him on my way home from work.
It sounds like even though you had deep emotions for him, maybe he wasn't giving you what you needed all along - you said you gave him all of yourself and he didn't do the same for you.
The beginning of a break up is SOOOOO sad and painful, but it does get better, little by little, as your mind sorts it out and eventually the feelings fade. You're smart to not return his calls. That will just reopen the wound.
Hugs to you!!!