imessage on mac won't send to just one person
The imessage on my Macbook has been acting up for about the last week. Last week it wouldn't send imessages to anyone, and so I logged out of it and logged back in and it seemed to be working again.
Today I am unable to send imessages to one particular person. She has iMessage, and we message frequently between our phones and our laptops. My iMessage is connected to my phone number, in case that matters. I can send messages from my Mac to everyone else I typically communicate with, but when I try to message her, it won't send. It doesn't even say "cannot send" it just sort of has that blue sending bar at the top unable to reach the end.
I am able to message her from my phone as usual, and those texts that I send will even show up in the imessage chat screen on my Mac. It just won't show anything from her. I can receive her texts however on my iphone.
Is this a problem with my imessage that others are having? Or could this be a problem with her imessage? If anyone has any guidance, pleaes send it my way!
MacBook