How to earn my boyfriends trust back?

you already blew it thinking he was cheating on you - a sensitive caring - guy cant stand this - it means you never belive what he says - i never understood females who think they can minipulate a guy not listening or beliving what we say and then turning it into something else - this only applys to guys that never cheat on anyone - good luck - usually this would be a communication problem - if i were you - i would totaly trust him and apologize - you have done real hurtful damage showing him that you didnt trust him - or belive him - or he was talking to other girls on facebook and ask him why he is ? i kind of wouldnt understand why he would be talking to other females unless they are your freinds too - or maybe just talking for conversation - so i dont really know what you can do - its kind of up to him i guess