First.
Without respect, everything else is performance.
For most of my life I tried to love before I respected, and I could not understand why it kept failing on me. Respect means seeing the other person as fully real, their own person with their own life, separate from whatever I wanted them to be, and that turns out to be far harder to actually do than it is to nod along with. You cannot skip past it and land on love. You land on something else instead, something that calls itself love and is not.