Hiding text messages on iPhone?

K. So I've been searching around and I'm stuck. I have a new girlfriend and I guess I did well when I was single, a couple girls still text me even if I tell them to stop. My new girlfriend gets pretty jealous and I share my phone with her because I have nothing to hide to help her. So I'm trying to find an app to filter the messages from these people. In plain English the messages won't show up when they come in or in my messages instead they get sent to a private folder so i can view and delete. It would just make this transition a lot easier. Is there anything like this? And if not can it be sent to someone to be made lol.

There's an app available for jailbroken iPhones called iBlacklist. With it, you can add numbers to a blacklist which get removed from your regular Messages app automatically and sent to your iBlacklist to either be read later or deleted.

It works for phone calls too.

So, "in plain English", your ex girlfriend calls you and text messages you but you added her number to your blacklist. No missed call shows up in your recent list, no text message shows up in your Messages app. Open your iBlacklist app and there's both the call record and the message record,… Unless you have it set to automatically delete from there too.