u/Fancy-Resource2869

So me [24m] and my girlfriend [24F] have been officially dating for 2 years. Before that me and her used to mess around in high school but I was immature and seeing other girls. This was about 2018-2019. We went our separate ways she went to college, I began working . We reconnected a few years a later and after almost a year we became official for the first time. When we were in high school I took her V-Card and came to the conclusion that eventually someone was up next but it didn’t really bother me. When we reconnected again I had asked her if she did anything between the years we stopped messing around and now and she reassured me that it’s only been me and that all she did was go on dates with other guys. Keep in mind when she asked me about my past I laid it all out on the table , told her everything and everyone I’ve been with. Me being me, in the back of my head I always had a feeling that this wasn’t exactly true but since I’m not going to hang on to the past i disregarded it. Over the past 2 years she has went out of her way to tell me that I’m The ONLY one to do anything with her but she would change little details in her stories which made me suspicious. The gut feeling came back in full force and it never really went away. One day I got the sudden urge to go through her phone and I found old conversations of her friend telling her to stop having sex with “strangers”. Yes plural. My heart sank because up until this point I thought this girl would never lie to me. The worst part was when I confronted her about it the look on the face like she’d been caught, and when I asked her to come clean she kept lying about the fact. Then she finally admitted it was one guy that she had sex with. A few days passed and I was able to pry some more information out after she said time and time again it was only ONE GUY. Turns out we’re at 5 now. Her willingness to keep lying after being caught was a complete turn off and I don’t think I’ll ever see her the same especially when she kept lying time and time again after I confronted her. Am I wrong to feel like this? Am I wrong to think there’s way more?? That she could’ve cheated on me? Keep in mind she deletes messages and cleans up her phone from time to time so I would have no way of knowing. It just feels like I have to question every single thing that comes out of her mouth when before that our relationship was 100% healthy . Thoughts?