Text is converting to MMS automatically

[pandorasweet]

My fiance's phone automatically converts my contact information into my 1234567899@tmomail.com contact, which makes the SMS convert into MMS. This slows down everything. We have deleted the entire thread, and all of each other's contact info, and tried to start over, but it just continues to default to that number. When I type in her tmomail.net number into my phone, it keeps the 2 threads separate (her tmomail and her phone number).

How can I fix this issue??

 

[PsYcHoNeWb]

My fiance's phone automatically converts my contact information into my 1234567899@tmomail.com contact, which makes the SMS convert into MMS. This slows down everything. We have deleted the entire thread, and all of each other's contact info, and tried to start over, but it just continues to default to that number. When I type in her tmomail.net number into my phone, it keeps the 2 threads separate (her tmomail and her phone number).

How can I fix this issue??

First things first, what phone does your fiance have that is causing the problem.