You said it, you don't want her DS or her life, you want yours to be a bit easier! that's totally natural, you're a mum trying her best in very difficult circumstances. and maybe she has some compulsion to over achieve and it makes her as stressed out as you, underneath
I have a friend a bit like this - she bakes, she gardens, she has a fabulous home, a DH who earns a lot so she's a SAHM, etc etc. Her DS slept through long before mine did (and mine was a relatively easy baby), and I always felt completely inadequate around her. And I did feel angry with her when I never seemed to have a muslin with me, and hers were always fresh and bright white, but she wasn't offering me the muslin to upset me, she was just trying to help.
But you know, our DS' are both two now, and I'm really glad we stayed friends. All that rivalry seems so long ago, and so ridiculous - the first year of a baby's life is so stressful and so tiring it's natural to get things a bit out of proportion.
She's a really supportive friend, and was there for me when I lost a baby, and a lovely person. I've just come to accept that her house will always be cleaner than mine and she will always deliver home made presents with a bow round them while I scramble round with something not wrapped bought at the last minute. She doesn't care though, so she must see something valuable in me
If you find it hard to talk to your DH, you could try your GP? They're completely used to mothers bursting into tears on them in the first year of a baby's life, and they will be very sympathetic and put you in touch with people who can help. It's completely normal to feel at your wits end when you have a tricky baby - even easy ones test us to the limit.
HTH - do keep posting if you need support, this is a good place to get it