Paco, given the volatile relationship the two of you have right now definitely do not go in for a kiss or a hug or anything of the sort. Stick to BUSINESS ONLY.
Quote
Me: I understand. You must be very tired after the week with the children. I hope you get a good rest this weekend. I'll be there by 8 pm
This is a good, validating yet business-like response. Try and maintain this type of communication with her both by text/ email and in person.