Emai name has changed somehow

[anken]

Hi, I have tried to send a link via text to someone. (Android to Android Cell Phone) Something went wrong and now the
receiver's email name has changed to:

a ten digit number and then@vtext.com
Does anybody know how to fix this??
Thanks in advance ,Ann

 

[anken]

Oops, I just realized that the 10digit number before the "@vtext.com" is the cell number of the recipient who's email address got changed. I feel responsible but don't know how I could have done it....Have checked for virus & malware on my tablet & smartphone. All is well...
I still don't know how her address got changed from the reg. email address to those numbers and not just for the text message but also for emails.
Has this ever happened to anybody?