Is there anyway to tell when (time or day) a number was blocked on an iphone 4s?

So my girlfriend has a co worker that likes her and flirts with her. And she has his number blocked on her phone because I asked her to. But i'm skeptical of whether or not she unblocks him sometimes and then reblocks him.

Dude you suck as a boyfriend. If you don't trust your girl, break up with her. This is ridiculous, and can only end badly. You are basically stalking her now. I mean just take a minute and think about this. You are asking people on the internet if there's a way to check up on your girlfriend to see if she is talking to a guy that you made her block on her phone because you are jealous of him. DO YOU REALIZE HOW FKED UP THAT IS? Is this really the type of relationship you want to be in?

If she wants to do the horizontal tango with him, she's going to find a place and time to do it and your jealousy is going to push her that way if it does anything.

No, but you can always look at the phone bill to see if she's in contact with the person.

Nope, unless you have a flying spy cam following her every move, you are not going to know when she blocks or unblocks any numbers.

Personally I don't care who my SO's or friends talk to or text. But then I'm an ADULT.

But then you are still a child as far as most people are concerned. Why do I say this? Because you act like one and think like one. She can still talk to him, still text him all she wants and just block the number when she gets home, because she knows you will be snooping through her phone. Frankly I see her counting the days until she can dump you for someone grown up.