Looks like I'm getting into World of Warships - Lemmy.World

My gf went through my phone - Lemmy.world

My gf(30) revealed she has gone through my phone behind my back and during an argument brought up a message to a random woman I matched with on tinder and never met. The thing is this was a good 4-5 MONTHS before I even knew she existed. I have been very open with my phone and given her the password but I still feel betrayed. Are my feeling justified?