I don't want my boyfriend to talk to this girl? Am I wrong?

[Precious]

So, the reason he gave for no longer being able to speak to her wasn't "I'm making my girlfriend feel really upset by talking and flirting with you, it was wrong and I shouldn't have done it so I'm deleting you from facebook" but it was "my girlfriend won't let me talk to you anymore"? You shouldn't put up with this nonsense, the 'my friend was on my account talking to her' line is an obvious lie, and he clearly hasn't deleted her or stopped speaking to her. Confront him again, tell him he has a choice between you or this girl, and if he doesn't stick to his promise of not talking to her then you can't trust him and you should just walk away and find someone who cares about you.