Looking through boyfriends phone...?

so me and my boyfriend have been dating a little over 2 months... and well i trust him so much! because he trust me so much! but then i heard a bad rumor about how he goes out everynight.. and im not that stupid because im almost with him everynight! BUT i do believe there is always some truth to a rumor! SO! We are out at the bar and hes a little tipsy and he tells his story of this guy from adam 4 adam that saw him where he works and tired to get with him..(laugh riot...not) Why are you on adam 4 adam? he told me that he gets on adam 4 adam to talk to this one OLDER guy that hes been long time friends with...and now he recently got a facebook...So in my head im like Hmmmm rumors......um.... still on adam 4 adam when this older guy is on facebook..... UM... and it doesnt help that i can get a little paranoid...i think we all do... anywho! SO this morning he forgot his phone..and i was REALLY fighting with it to NOT look through his phone cause i dont want to break the trust and i was thinking some things are best left unknown then i was like Forget that! i dont want to be played like a fool!!!! So i did it...and i saw that about a month ago he sent a pic to 2 people, and apparently hes talking to some matt kid about getting together to see a movie soon and he was like "do you think its going to be ok to see a movie now that yuo have a boyfriend" (and he deleted most of his sent texts...so whatever..maybe no room? FUNNY though that he still has those 2 naughties from last month)........GAHHHHHHHHHHHHHHHHHHHHHHH now what do i do? Do i tell him i went through his phone? do i wait and try to catch him in a lie so i dont have to tell him i went through his phone... Im the type of guy that if you are dating you are DATING, no funny business! i try damn hard to make him happy! im his boyfriend thats my job! =/ Advice please? im at work feeling terribly ill... =(