Long story short I have been with DP for 3 years, he has two children by two women (5/9) the older child’s mum is lovely and supportive of my role in the family. Youngest mum is not, she wishes I didn’t exist.
I found out two months ago that DP had cheated on me during a rough patch and it was with her, he was devastated he hurt me, she loved it and kept messaging me to rub salt in the wound
Me and DP have decided to give it one more go, I love him and our family dearly. The mum will not let him move on, she guilt trips him constantly , he tries to make boundaries but she then says he’s a bad dad etc
I am not excusing his behaviour at all, but I am asking, should I feel sorry for her ? Should I consider how she feels? Or am I allowed to not care as she was once so cruel to me?