It seems that there is no way to transfer text messages from computer to iphone.Yes, unless you use some tool to do it.. Actually, there is some third part tool-Coolmuster How to Print Text Messages to transfer sms from pc to iphone .This is one of the efficient program. You can have a try.

Guide: How to send messages from computer to iphone 

Step 1. Launch the Program - Coolmuster How to Print Text Messages & Enable USB Debugging.

Enable USB Debugging in your phone, different versions of Android so have different operation:

For Android 2.3 or earlier: Enter "Settings" < Click "Applications" < Click "Development" < Check "USB debugging"

For Android 3.0 to 4.1: Enter "Settings" < Click "Developer options" < Clicks debugging"

For Android 4.2 or newer: Enter "Settings" < Click "About Phone" < Tap "Build number" for several times until getting a note "You are under developer mode" < Back to "Settings" < Click "Developer options" < click "USB debugging"

Step 2. Send Messages to Anyone You Like     

How to send sms to many people at one time