How should me and my guy approach ex-girlfriend situation?

Me and this guy are on the road to exclusivity. He's told me countless times how much he enjoys spending time with me, how he expects nothing sexually from me, how beautiful I am (he says I'm the most beautiful girl he's ever dated). He has a profound sense of respect for me (his last two girlfriends were nothing like me). He tells me (and I already know this about myself) that I am really presentable, proper, extremely intelligent, etc.



My guy was dating his last ex girlfriend for 6 months and broke up with her in September 2008. I've asked him if he's ready to enter another relationship--if he wants to clear all his feelings for her before moving forward. He's told me a few times that he has no feelings for her whatsoever. He was never in love with her. He doesn't see a point in NOT moving forward because he has no doubt in his mind.



Trouble is when she sees him and he's walking over to me, she holds him up and tries talking to him. I've watched him handle the situation. His body language, in my eyes, indicates disinterest in her. She's even approached his friends to ask about me. She's even instigated drama by having someone else feed both me AND him information about the other.



She still likes him (he treats me--and I'm guessing his exes--wonderfully). I feel like she's comparing herself to me in her paranoia. That she wants to know what her ex sees in me. Should I let her approach me--to speak with me. So that she might see what about my personality appeals to her ex and my current guy?



Should I tell my guy to talk to his ex in a 'heart to heart' sit-down. Let her know that he's interested solely in me. He's told me that she's tried probing him for information about me, but he hasn't let her know too much. He doesn't want to deal with her because she's acting like a 15 year old. But doesn't he NEED to talk to her about this? Or should be continue to ignore her and hope she's eventually grow up and get over it?How should me and my guy approach ex-girlfriend situation?
See if you bf and his ex still text each other. Get him to send her a message laying outo the ground rules. Suggest that he state that now he has a real GIRL FRIEND and is not looking for extra attention.