"I don't know if I should keep my mouth shut or if I should send him a message and tell him That..... I know the Girls are getting more difficult in their teenage years, but I don't think pressuring them and making them feel guilty will help. This is the life he chose, not the life they chose to live.
Any suggestions ? Should I keep quiet or speak up ?"
In the context of you both being D, think about how you broach this topic so as not to antagonize. Because you know your ex will probably feel like he is being maligned.
It is a delicate balancing act, I would think. Maybe say something about the D's loving their father but are not yet ready to move into the next phase of his R with a person other than their mom.
I don't know, kind of dicey situation that could get aggravated if not handled with care.
Sorry, its the best advice I've got.
Me51 W53 S17 S14 M22 T25 Bomb-9/11; A-11/11; I move out 11/11
It's easy to find our bottom, it is our top that requires cultivation.
Every rough spot adds to our emotional constitution. -Barney Fife