I felt incredibly angry when my friend attempted suicide, and I still do. It's not anything bad, it's a form of grief. Ever heard of "ambiguous grief"? It's the process of grieving someone who is still alive. And a very common part of grief is anger.
I can't speak much on how you feel but I can offer some advice on your wife. You might need to accept that there may be parts of this suicide attempt she can't talk about yet. And in turn, she will need to accept that you will have to talk about some of it at some point. Things like these, when you're both emotionally fragile sometimes have to go two ways.
If your wife is mad, then that's absolutely ok. She's hurting, and it's coming out in anger. It's ok for her to be mad, it's not ok for her to take it out on you.
This is difficult because I really, really do not want you to feel guilty. But I'm also trying to point out that I really wish someone had validated and accepted my anger straight from the start and helped me. That doesn't have to be you. You're not her therapist. But even the nicest people have their breaking point, and attempting to hide anger always leads to it coming out later in more harmful ways. Hope this helped a little, I hope you get better soon.
