Little sensitive

I really really REALLY hate it when someone talk's to me about my kids like I didn't know or they know them better than me. For example my bfs mom:

When ever I say things like "he didn't like pees at birth" she likes to say "no he did it was sweet potatoes he didn't like" I respond "no no no see he hated pea's but loved sweet potatoes so much his nose turned orange" it goes further. Or

Me: I love his curly hair

Her: Me too he's had them since birth

I think I'm over reacting but this lady does it with EVERYTHING! She Tell's me like I'm not his mom and it's new to me. She also like's to tell me thing's like "he need's to learn, you need to teach him this" it's like I know what I need to do! She had a friend over yesterday and she was showing off my daughter. Her friend asked me "how much did both of them weigh?" I can tell the instant irritation in her face because she's didn't ask her.

She has been doing this shit since I had him in 2013. Not so much with my daughter tho. After I told the friend; bfs mom would preceed to tell her a bunch of stuff and when the friend would ask me "really?" She didn't like that. Some time's when they talk about my kids they completely praise her like she is raising them. It makes it look like I'm not ever there; when I am 24/7. It's ok if she talks to her friends like that; because I see it as being a proud grandma. But talking to me like that it feels like she want's to prove she knows them better or something.

Idk. I was fine with it but after 3 years It just gets old.