The key thing in any relationship(and ones you want to start again) is communication so what you do is ask if you could talk to him and tell him what you are feeling/thinking and see what he says.
He misses her....?
He will show his compassion & love for you, That means he will most likely eccessively text you, or maybe even call you. He will mention how much he misses you, & probably compliment you. He won't be as "Joke-Ish" with you when talking, more serious & sedimental.
It means its time to get a new boyfriend
that she misses him and isn't over him
easy. when you're talking, just say it. "i miss you" is all you need to say. dont try to be all fancy, just be yourself. its not a big deal, everyone misses someone at some point in their life. he most likely misses you too if it's been a while.
If your boyfriend doesn't work out of town or live in another town and you have not heard from him in two weeks then you should learn communication skills and phone or text him to find out why he has not contacted you. If he sounds distracted or distant then tell him it's obvious he isn't interested in you and you are moving onto better things. If he says he loves and misses you then tell him that you would expect him, as your boyfriend to at least contact you once a week. If you don't ask for respect you will not receive it.
She most likely misses you. Try to work out and see where you get.
Just like you asked answers.com. If he is a n ex you all have history, so he knows you. Tell him if he misses talking to you he might as well do it in your face. See how the convo goes. Body language will help, and if youre still unsure by his body language, then just ask. Just be careful with your own emotions, and dont get too into him until you know if he is sure or not
Youre feeling insecure. Or, maybe you picked up on something still between them. You should probably talk to your boyfriend about your feelings.
Maybe you need a break. Tell her to call you when she gets her feelings straightened out. It's not fair to you to be with someone who lets you know that she misses the last guy she was with. She is immature. She needs time to get over her old boyfriend. If she can't then maybe you should move on. You deserve to spend time with someone who isn't pining for someone else.
More than likely, he misses you. As a guy, I have noticed that sub-consciously I will start missing my ex after long periods of time. I would recommend that you ignore him, or don't get to involved to much with him. Keep it on a basic conversation level. I hope this helped!
That sounds like he really likes you as a person, as in your personality traits, doing things with you, etc. But he does not want to be boyfriend/girlfriend, as in romantically.