Anonymous wrote:so over feeling she tries to out do everything.
This is your feeling, so you're the person who can change how you respond to it.
If she IS intentionally trying to out do you that's a ridiculous goal on her part. (Like if she got pregnant because you did? Crazy.) If this were the case, the best thing is to live your own life and not get involved with her craziness.
But it seems equally (or more!) likely that you are over-interpreting things. And stop listening to what MIL says about "Betsy." Base your relationship with her on her own interactions with you. She wasn't over-the-moon that you're getting into a Ph.D. program? Maybe she had heartburn and her uncle was dying so wasn't in a congratulatory mood. At the very least, she didn't say anything dismissive (and you know you can't trust what your MIL says she said about popping out babies, right?).