Last night, when my boyfriend was sleeping next to me, I couldn't sleep so I started playing with his phone that was placed right next to us. Soon, I got curious and started reading his texts to others... There were flirty messages to girls that were sent a few months before he met me, and I couldn't help but feel a bit angry about it even though it was from a long time ago. After checking his phone, I found out that he has been pretty loyal to me since the day we've met. I feel guilty for invading his privacy, and it's been bothering me since for some reason. What should I do about this? Thoughts?