I think Kenna needs to understand what love is for once. She thought she loved Henry and that he moved on from Diane because of sex, and she said about her relationship with Bash that passion brought them together. Frankly I don't think passion is what brings two people together, sex is part of a relationship but so is talking and compromising and understanding one's needs.
I think she could have had all that with Antoine. It's a shame they wasted it
I hope he'll be back or that she will at least find someone who understands her as much as Antoine did.