Have you ever been out and about and you bump into an old so called friend or someone you knew from the past and you speak to them and they act like they like you and offer to give you their phone number and u didn't ask for it,but you take it anyway and just out the blue you call them and they are too busy to talk. I mean damn if you didnt want to be bothered, why play games...Believe me honey,what you eat don't get rid of my hunger and to be real about it i am not pressed for your friendship so go stop flattering yourself. I chase noone. Please believe.

For example; In kindergarten I was friend with this girl, and then she moved. 8yrs later she comes back and she knows me so well, while I stand there with a blank stare.
I told this story, because maybe old friends kind of forgot, and want to learn, they are just plain selfish OR, maybe something they had to do, which made them unable to contact.
Now when someone ask for my number, I give it to them, but I don't reply to them because I have to pay for my calls/texts.
So don't take it personal, try to learn why they did what they did, without letting them know what you're doing.
I hope this helps!