Just because she deleted the message doesn't mean you carnt get it bsck. There are a few ways of doing it. Such as changing the sim into another phone and then restoring the info. Will give you the last 150 messages. Or plug it into your computer and get them that way is an alternative.
Op. Is your birthday coming up soon? Or anything special? Maybe your ex-girlfriend is planning a surpise for your insecure ass
Drop her! I have been marred 17 years and if she is already keeping secrets than it won't last. My wife goes through my phone when she's bored I even watch her but I have nothing to hide. She is a waist of your time. Confront her about it and see what she says but if I was you I would kick her to the curb
Kintoki. I bet you really hit the nail on the head!! She's obviously planning a surprise for her boyfriend with the guy who wants to be her boyfriend.... OP, ignore this idiot