How to remain strong and positive through this

[tryingishard]

My husband was just diagnosed with colon cancer, we are still unsure if it has spread or not at this point but they remain hopeful from scans so far that it has not. My husband has dealt with many many health issues since the mid 90's all have been difficult. I realize with this new cancer diagnosis he is scared and discouraged and I am also scared but am hopeful God will get us through and cure him. Where I am really struggling is for quite a while he is constantly angry at all of his issues, he is always saying I don't even want to be here. I am always encouraging him but after a while it gets so hard to remain strong when he is always so negative and angry. I know he is that much more afraid right now but these are not new things he is saying. He does not know Jesus as His Lord and Savior which is my biggest prayer for him right now that his heart will be softened and see Jesus in this.
I'm just really struggling with all of these things he says, some times it's like walking on egg shells, he's not an easy patient he is a huge complainer and I try to be as comforting and understanding as I can but it's hard to listen to someone say they are tired of being here. Has anyone or is anyone dealing with a spouse with a lot of medical issues?

[mommydi]

I'm really sorry to hear about your difficult situation.

Has he always had a problem with negativity and anger or did this develop after his health issues came about?

[tryingishard]

It has come on gradually as his medical issues have increases. It's not like anger where he's throwing things just saying things angrily about his issues, like I'm tired of being here, why if there is a God why does he keep giving me all this stuff (saying more angrily with not nice words) that kind of anger.