Should I be mad that my wife went through my phone and found text messages about her to my family?
Oh my god, What do you plan on doing in response to this?
I will never allow such a thing to happen again
It's wrong to spy on someone else's communications like that. She shouldn't have done that.
It's my phone and I can do what I want with it.
It is your phone and you should be able to have privacy. You should talk to her about respecting your phone.