GF went through private camera roll…

I’ve been dating my gf for over one year. I love this girl so much. I’m a 23M she is a 22F. But throughout our relationship she has gone through my phone, texts, camera roll. Which sort of bothers me because I do like my own privacy. But I’m not texting any of girls or have photos of previous relationships. This past week my gf went through my Snapchat my eyes only. Which is completely clean and is old videos of me and my friends drinking. I have never gone through my gf phone. But I am thinking of asking her to go through her my eyes only because she went through mine. Is this wrong of me to do? And what if I find pictures of her past relationship?