I wish mine had said:

"You will probably fall in love with me, because this will be the only relationship you will ever have where you will feel unconditionally cared about and validated. I will trigger unmet needs in you, and you may forget this is a professional relationship. After you fall in love with me, you will eventually need to leave me, and I will never have any contact with you again. And by the way, even though you will fall in love with me, I will never fall in love with you because you are just my job. I see and have seen hundreds of others, so our relationship is not special. I may not remember you after termination."