I was RIGHT!!!!
Ok chicken foot...here you go.... Ask them to make a phone call using their phone, or just grab it. Turn the radio off right before you are going to do something in their presence, like watch a movie, something that will prevent them from checking their phone. After a couple of hours grab the device, lock yourself in the bathroom and turn the radio back on...you can then gawk through all of the text messages before they have a chance to read and delete!!!
Or better yet....dump the loser and find someone who wants to be true to you!