Is it normal for divorced women to call their ex-husbands often because of their children?

If two people are divorced; It is best to avoid too much contact; If you often find reasons to disturb one party after divorce; That means she can't let go at all; As for whether the new girlfriend should bear the problem of the stepmother of the child; It depends on whether she can convince herself that no matter what she encounters in the future, she can accept it, but the pain is unimaginable; Because she is only the girlfriend of her ex-husband, as for being in the position of girlfriend, she must be spoiled now; Waiting for such a sweet time to pass; Probably like his ex-wife.