Hey hun, i would be pretty annoyed too if that was my bloke. Not the fact that he is mates with other girls, but the lieing. i don't really have much advice, i guess you've already tried telling him how you feel without moaning?
I don't agree at all with you having to stop talking to your mates that are blokes, but then at the end of the day that was your choice to give up your friend for him. Personally i wouldn't have done that but you obviously was ok with it. How long have you & your bf been together?
It doesn't sound like you trust him hun & you need to decide what to do know otherwise it will get worse, sounds like you are driving yourself mad with worry & you can't keep checking his phone for the rest of the time your together. You need to make a decision now whether you can trust him & carry on with things the way they are. Personally i don't think he sounds like a very nice bloke, lieing to you & wanting to stop you from talking to your friends. I've been in a similar situation before, & it;s not nice.