This morning my ex told me that he simply wants nothing to do with my new partner.
This despite the fact his kids (or our kids) are likely to spend time with my new fella.
Given that his new partner (a chick) will be a part of my kids lives, yes I want to meet her and get to know her to some extent.
This exemplifies an area in which men and women are different.
Whilst my guess is most men would feel the same, my guess is most women want to know.
Women like to compare themselves to other women. It’s a natural phenomenon. https://polarbear87.wordpress.com/2014/01/07/gaggles/