[dazc]

As we say in the UK, 'You Can't Have Your Cake and Eat It'. Which is another way of saying that you're always going to have to accept some compromises in life and nothing will ever be perfect, especially not where relationships are concerned.

Both partners will annoy you and delight you in different ways and you'll always be thinking you made the wrong choice.

This is the answer you weren't exactly looking for, sorry.