Ok I've been texting a friend lately and everything has been normal. Her phone number is in my phone as a contact and when she texts me it shows up as her name, and the messages are typically iMessages, with the occasional green "Sent as Text." Then last night suddenly all our texts were green, and not iMessages. I figured it's because she is in a place with no WiFi. Then I got a text from [her first name]@[her last name].com and it's all iMessages. This is a separate conversation thread than the contact for her phone number, but she says she is texting from her phone as usual. Any ideas why this has happened? All my iMessages with other friends are working as normal, so I assume it's something with her phone, but it's annoying that this contact has suddenly become two contacts in my phone instead of one.