Why didn't I receive text messages people sent while I was away?

I was away in Italy and I took my cell phone, but turned off roaming and data. Anyway, when we got back my sister received text messages people sent while she was away, but I didn't. People told me they texted me and I never got them. I don't this guy to think I'm ignoring him if he also sent me a text while I was away.

I have an iPhone and my carrier is Verizon.

Added (1). @Gino- I know I wasn't going to receive them in Italy, but usually when you get back home and have service back, you receive text messages people sent. It's like when you have your phone off and then turn it on, you receive messages people sent while it was off.

See, I told you he was still into you (with my other account).
Yeah, in the Bella Italia your Yankee Doodle phoney no work goody ;-)

edit: hmm… Maybe phone got memory loss…

You only receive old text messages that are 3 to 5 days old. Any text message over 3 to 5 days old are lost.

If you are concerned about not getting his texts, text him or call him and tell him that you are home.