Would you feel some way??

Ok so my boyfriend of 5+ years and I have two boys and I am finally pregnant with a girl. From the minute I found out I was pregnant I had the name Elliotte for a girl name and I love it. I know it’s a typical boys name and not the girliest girl name out there but that’s the name I chose and I love it. His grandmother has made plenty of comments about her name saying “did you change her name yet” and “why would you pick a boys name after finally getting a girl”. I’ve let it go and laughed it off because I know I don’t need anyones validation but it just really rubs me the wrong way. My boyfriends brother is also having a baby girl and they chose a boys name also and I’ve never heard her say something negative or nasty to her and it just poses me off. Am I right on feeling a little upset and offended or is she just old and not living in todays generation where it’s ok to name your baby boys name,girls name,planet,direction!?