Formal:
* D'accord, mon amour. (This is a more formal and distant way of saying "okay")
* Bien, mon amour. (This is slightly less formal than "d'accord" but still polite)
Informal:
* Okay, mon cœur. (This is a more intimate and affectionate way of saying "okay")
* D'accord, mon chéri/ma chérie. (This is also a common and affectionate way to say "okay")
* Bon, mon amour. (This is a casual and affectionate way to say "okay")
Even more intimate:
* D'accord, mon petit/ma petite. (This is a very intimate and affectionate way to say "okay")
Tips:
* The best way to say "okay my love" in French depends on the specific situation and your relationship with the person you are speaking to.
* It's always a good idea to use a more formal expression if you are not very close to the person.
* If you are in a romantic relationship, you can use a more intimate expression.
Ultimately, the best way to say "okay my love" in French is to find a phrase that feels natural and comfortable to you.