How do you break off a friendship with someone who didn't do anything wrong, they just have the perfect life and it's annoying?

So "Jenny" and I met when our girls were newborns. They're now 18 months and 19 months old. We've been close but Jenny, I swear, has the perfect life. There's nothing wrong with Jenny, she's just annoyingly fucking perfect. Her house is always clean. She's tall, thin, and pretty. She always has energy. She does yoga. I swear she never loses her temper. Her daughter is fucking perfectly behaved while mine is tearing my hair out and smacking me in the face. She swears her daughter has hard days too but I've never seen it.

Her husband is supportive, attractive, and the best dad ever. I have to ask mine to spend time with our daughter. Jenny's perfect husband sent her to get her nails done for her birthday and for Christmas, he took the whole family somewhere tropical for a week. Mine got me a gift card to Amazon.

She has a nice house, and is so freaking happy. She makes cookies, bread, soup and all sorts of stuff when her perfect daughter naps. She offers to take my daughter for the day if she's being too much. I'm like... Just stop already. She doesn't rub it in your face that she's perfect and her life is perfect, but the fact that women like her exist is just annoying as all hell.

I've tried to ghost her but I can't. She just texts and asks if I need space and if I'm all right. The problem is that she is just too freaking nice! My fiance and I have been engaged for over three years and he's not keen on setting a date just yet. We have awful fights and have gone to therapy before. We're probably headed that way now. My daughter is a terror. Tantrums galore, into everything, running the show, not wanting to nap. Her daughter is so happy she freaking giggles all day. I've never seen her throw a tantrum. If she's tired she rubs her eyes, yawns, and goes to sleep.

Being around Jenny just makes me feel like a failure even though she's not like rubbing it in my face. I'm a stay at home mom with no life because my child is a terror who I can't take anywhere.

What's a nice way to say that I don't want to talk to Jenny unless I text her first? I just hate when she invites me over and she has fresh cookies out. Or I'll tell her I'm having a hard time and she'll be like "Oh my daughter is down for a nap so drop your crazy child off over here!"