I agree with Miss B and Myturn, so congratulations

I am currently in a similar situation in that, I have recently gotten my BFP and a friend who was cycling at the same time and doing her second round of the same treatment got a BFN the week before. I think my bfp is even harder for her because we started our cycles on the same day. Mine went much slower and her bfn came a week earlier than my bfp but my pregnancy is going to be a constant reminder of the cycle that didn't work for her. With that said she did congratulate me. Maybe she is feeling a loss of 'partnership' she had thought she was going to have with you in this?
On another note all my bfn cycles were paired with either the announcement of a pregnancy or birth of one of my close friends babies. I was really happy for them, saying congratulations was really hard though. I often sent a text to begin with and then saw them at a later date, but if I'm honest I found it really hard.
I guess what I'm trying to say is that we all deal with things differently. It would have been nice for her text but I guess she just couldn't. With time, she will probably process the news and be able to celebrate at some level with you. It is a hard position to be in, so big hugs to you both.