of groceries bliss

IMHO, grocery shopping is the ultimate sign/experiment/test of domestic bliss.
No, I like those pretty toilet paper embossed with butterflies. It has to be at least 3 ply, darling.
Omg, you have sensitive teeth? So this means we need to get Sensodyne.
How can you not like alphabet-shaped pasta?!
No, I hate brussel sprouts, it makes me fart. But I love them.

My humble 2-cents-worth take on it:
Pick your battles.
Get the damn butterfly embossed toilet paper. 50 cents more for a gratified smile on her face is nothing.
Do you need to share even toiletries too, when you're already sharing your lives and bed and house and bank accounts and food and that cute golden Labrador puppy?
Be adventurous and spontaneous - pasta tonight will have both alphabets and penne. It's your new life together as a couple, go ahead and make your own rules.
Eat the damn brussel sprouts. It's good for you anyways.
And then, carry the grocery bags out of the supermarket together holding hands if possible, walk through the front door of your new house together, put the groceries away together, beached on the sofa together until dinnertime where you make carbonara with both penne and alphabet shapes.

And yes, the repetition of the word 'together' is intentional.
Rejoice that you do know the meaning of that word in every way and sense possible.