Part Time Parent

I am a part time parent. I only get my son every other week. It is the worst thing in the world for me. I hate missing him for the time he is gone. I hate missing out on his new accomplishments. He gets so big when he is gone. It so sucks. I talk to him and then spend thirty minutes crying afterward because I miss him so much. I wish there was something I could do. I hate it, I hate it, I hate it!!!