Looking at engagement ring friend seems a little on edge or jealous

Kellie • Mother of three and currently ttc #4 due to health issues my chances are starting to shorten every day! Staying positive and wishing everyone lots of baby dust
I posted a few weeks ago about a real close friend being there during my break up and how we are now together.. It's been a little over a month that we have been together.. Everyone says it's moving fast and I felt like that as well but then I decided to just go with my heart.. And so far things are wonderful. As I mentioned we have been friends for many years so it just feels like this is meant to be! Anywho he shows me a few rings he has been looking at.. I'm beyond excited! But my female friend seems to be a little jealous or maybe just worried because she's been with her live in boyfriend for six years and haven't been purposed to.. I don't wanna jump to conclusions and assume she's mad cause she is my friend.. But she always has something negative to say...