I wonder if I should write or email her apologising for my part in the breakdown of our relationship which I believe is substantial and also warn that any relationship she starts on tinder is likely to fail (knowing it has temporarily at least)stating that men on there are normally after fun rather than the relationship she craves and may manipulate to get their way. (I am worried that this may be the case and she has just arranged for our youngest to be out the way for the first time since he dropped her).
Sending her this is probably the wrong thing to do. Best to say nothing and let her Pursue you