She sounds just, delightful...
Why is she your friend??
I'd tell her you know it's bump-not-bloat because you're actually having four, and the doc confirmed that.
Oh, and this obviously means you'll be moving out to a MUCH bigger place, tiny it sooooo nice of OHs uncle to offer 1/2 price rent and you're so sorry this is happening at the sameish time as her move, but just because your new house and new big family are now so much better than she could ever hope for, that doesn't mean her new house isn't still just beautiful...
Or maybe not, but sometimes people just fuck me off and I get shitty with them for funsies xx