My wife might leave me for lying abiut my health?

I found out that I might have cancer on April 5th the anniversary day my father took his life, every year since then I've had abandonment issues, and I find myself depressed and angry, so hearing this on that day really rocked my world. Things between me and my wife have kinda been sketchy as of late. I thought I would lose my job, and not be able to support my family, i also didn't want to put anymore stress on our relationship so i decided not to tell her till things started looking up for us. But as time went by i started seeing that i needed her to help me get through this and seeing that it was starting to drive us apart. I was a work on day and found out someone had just came back to work after dealing with cancer herself, so i asked her for some advice on how to tell your spouse. It turned out she didn't tell her husband for over 2 years, she said to tell my wife soon before it turns too late but i have to be ready for her reaction because i already waited 2 months now and my wife will be hurt. So tried to tell my wife but before i could we would start arguing. So i went back to this women and asked if i could talk to her husband to get his point of view. Now during this time i hid her number cause i knew my wife would call it and find out that i been hiding my cancer from her and that would've made things worse. When i finally got the balls to tell her on the weekend she found the # and accused me of cheating so it all came out in a big fight not the way i wanted to tell her so my wife put me out and i don't know what to do i need help