My (23F) boyfriend's (24M) old message to me were unkind and I'm not sure if I should bring it up.

My boyfriend and I have been dating for ~8 months. We met via Tinder and have been exclusive for a few months. <br><br>Over the holiday, I was on my boyfriend's phone and noticed he has a password on a few of his apps. This is not unusual as the apps he had passwords on were for his finances and other private information. However, he also had a password on his txt messaging app. I asked him about this and he explained to me that he used to get a lot of spam messages and it helps keep the numbers out. <br><br>Fast forward to this weekend. We were at the mall and my boyfriend went to the restroom. His phone (which he had left in the car) alerted to new messages from an unknown number. I grabbed his phone to see if it was his mom (which I've talked to before if she couldn't get a hold of him). When I grabbed his phone, messages from me popped up (the default on this phone is the last person you texted, which 90% of the time for him is me). <br><br>Seeing those messages from me made me realize that his password was bullshit. I know the kind of spam messages he gets, and there was no way he had a password on his messages because he was getting spam, but for some reason I let it go without asking anything. <br><br>When he got back, I gave him his phone and when he unlocked it, he started scrolling through our conversation. He then locked his phone and put it in his pocket and we continued on with the day. <br><br>Now. I have been with this guy for 8 months. In the beginning, we talked about things from our past relationships and things from our pasts with the understanding that those were the past. We also discussed our boundaries and things we did not want to discuss in the relationship. <br><br>This morning I got on his phone and opened his messages and went to our conversation and scrolled to the very beginning and started reading. I scrolled back about a year and a half and then got off the phone. <br><br>I did not see or read anything that was with other people, but I did see things about me, him telling his friends he was going to "fuck with me" and that I was "a bitch" and "stuck up". <br><br>I have been trying to bring it up to him the past 24 hours, but I'm not sure how. I feel like I invaded his privacy and I don't know how to bring it up. I know it was before we were together, but it hurts. <br><br>Also the password thing bugs me. <br><br>How do I bring this up?