So here is the situation. My girlfriend has both an iPhone and iPad. Her iPad was at home on wifi. Her data plan got close to going over so she had to turn off her data, making it unable to receive iMessages on her iPhone while she was out. When I try to message her, it defaults to iMessage as usual but since her iPad is at home and connected, they deliver immediately. This made it impossible to revert them to text messages and message her, sans turning off my own data, which seems a hassle. Why don't I have the option to send text messages always? It only allows it on iMessages they have not been delivered and I'm not sure why it has to be that way. I understand thus is a niche situation but it was incredibly frustrating. I couldn't message her at all without turning off my own data/iMessages, since she has an iPad connected as well.