<human>: Can you give me the gist of the text in a nutshell?

My spouse and I have been married for 14 years, most of them being overly emotional and rough. We have two kids and a lot of marital debt. After a long period where we grew further and further apart, she told me that she was unhappy and wanted to divorce me. In all honesty, divorce is probably the right move, but I'm still not happy about it, as it means I'll see my kids much less. 

But here's the twist: She went to the doctor for a relatively minor thing last week. The doctor got a bit suspicious and ordered some tests. My wife thought it was probably stress from the decision she had made and she resumed planning to move out this coming week. 

Then, the doctor called back to tell her that there's a high probability that she has an acute form of leukemia. So, now we're doing more tests and talking to a specialist. She doesn't want to move out now and I understand why.

I have a lot of compassion for what she's going through and how scared she must be. But just a few days ago, this person wanted to leave me and even if I knew it was probably coming, it still hurt to hear it. Now, she's not going to leave and she's very sick. 

I know it's much scarier for her, which is why I haven't talked to anyone about this, but it's so much to bear all at once for me. I'm going to have to take care of her until she dies knowing that just a few days ago, she wanted nothing to do with me. Now, she needs me and I just resent her terribly because I know she doesn't love me and I don't love her, yet here we are. 

How do you live with that? How do you handle all those emotions? How do I not feel like the world is tremendously and stupidly unfair all the time?
<bot>: my spouse wanted to divorce me, is now terminally ill, isn't going to divorce me, and I'm stuck deeply resenting her and needing to care for her at the same time.