I AM being unreasonable, I know. But Grrrr.... 
My friend had a little boy 2 weeks ago, and he sleeps beautifully, only wakes once or twice in the night for a feed, has lovely long naps in the day, and feeds well.
I suffered with both mine - tongue ties and feeding issues, never sleeping, etc etc. am still in the throes of sleep deprivation with 6 month DS who only naps 20 mins at a time and wakes up every 2 hours (or less) at night.
I am very very happy for her, and I'm not wishing for her idyllic baby to change, but AIBU to wish she'd STOP texting me saying 'Ah, DS just had a 3 hour nap after his morning feed', or posting on FB about how she's finding everything soooo easy, keeping her house clean and getting everything done.
It's driving me insane! She knows how knackered I am. Stop with the stealth boasting! It makes me feel shit.
As you were.