That's a delicate balance that you're managing to maintain in your sitch: letting H experience the reality of his choices and pulling him toward respecting your place as your daughters' mother. It is truly big of you to keep offering peace, etc.. after such a heated custody battle.
One of the reasons why I will not be showing up at our D court date is that W does not see how her parental rights could be threatened by a judge's whimsy. She is very over-confident in that regard, yet I have absolutely no desire, see no purpose in proving her wrong. I see any removal of S5 from her life as being truly damaging/hurtful to her. I love her and want both S5 and her back in my life fully, not one or the other.
You've come a long way in that regard (healing) and I hope H and you can heal even further as a couple on that issue over time.