He stopped talking to me out of nowhere?

So my ex and I were on good terms for a while and we talked and joked around often. We have known each other about 8 months.
Over the last few days he has been completely unresponsive. He has an Iphone so I can see that he's read my message late late at night but he never responds. The past couple times, I've gotten nothing including the last message that said it was delivered but never been read.
I remade my profile on POF, the site we originally met on to message him to see what was going on because I know recently, he dropped his phone and broke his screen so I didn't know if he was just unable to receive texts and that was the issue. He came online but never responded, so I sent another message saying that I wouldn't contact him anymore, that all I wanted was to know why because I was hurt and confused.
Up until now he hasn't given me any inclination as to me bugging him or that he wanted me to leave him alone. I text him maybe once a day or every other day- nothing excessive.
I just don't know what to do, a part of me wants to call and see if I can get a response. All I want to know is what the hell happened because of how suddenly he took off.

If he wanted to respond he would have.

  • Why do atheists believe iphone 5 came out of nowhere? Like it was all meant to be happen, nothing set it off, and then it took a couple of billion years for the atoms to develop and come together. don't tell me it was done by some intelligent life, you silly leopard, we all know random things develop into beautiful complex things all because fu*k you thats why
  • New contacts came out of nowhere on my iPhone 4 iOS 7? I just noticed a few minutes ago that I have about 100 NEW contacts on my contacts list on my iPhone. They just came out of nowhere, I don't even know these people and I've never seen them in my life. Some of my old contacts are deleted too. Anyone knows what this issue is and how can I recover all of my old contacts while deleting all of the new ones?
  • My iPhone charger stopped working out of no where? My sister and I both have an iPhone 3GS and have used the same charger for awhile. It's never given us problems until now. Now if I plug it in it doesn't charge at all, but when the phone dies and I plug it in it works, until it automatically comes on, then it stops. We got it to work when we unplugged it and replugged it over and over but now that doesn't work either
  • IPhone 4 was stolen. How do I lock it if I'm nowhere near it so the thief won't be able to use it? Yes, I know I'm stupid for not engaging a passcode for it. Grr. I know who has the phone. Trying to find some time to confront the man that stole it but I don't want the service provider to switch it off. I want the thief NOT to be able to use it in the meantime. People at the Apple Store I can do that myself (lock it from where I'm) but were unable to tell me how.