Here's what I posted in your other thread Op.
If he's racking up $400+ long distance phone charges to 'chat' with her then lying to you about why it's that high, then Its pretty obvious that she means more to him then a "simple" friend. Has he logged that many LD minutes while talking to any MALE / friends? pfffft.
Please. This is NOT a case of her being paranoid because of her own insecurities. He's certainly suspect. And no one deserves to be looked at in the face and lied to. If he feels he has to do that then he should just leave her alone and keep racking up bills to the long distance fluff .
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion