Borderline Ex is now in a relationship with another borderline

[Foolish man]

Dear All
I am after advice
My ex is now in a relationship with another woman who has borderline amongst many other issues, this is very recent and her first same sex relationship
We have a 2 year and co parent very well and had a very good friendship , we have not been together in a relationship for a year and she has had another child 2 months ago
She has recently met a new group of friends, which include this girl. She had also started seeing this other guy recently ( father of child not on scene ) and has dropped that for this girl
Her nah i our has changed completely in the last few weeks , and her focus is not on the children
I do t know these people , but they all seem to have issues, and she is bringing them into her home when my child is there
How do I voice my concerns to her without it turning into an argument, I can already sense she is starting to turn against me
Do I say something or do nothing
I am very concerned

[Foolish man]

From what I have read , which I can’t find much about , 2 borderlines in a relationship is chaotic and drama filled , does anyone have any experience of this

[15years]

Hi,

what does your custody arrangement look like?

[Foolish man]

Hi
We have an informal arrangement , which is regular, every other weekend, here every Wednesday and every Sunday
This has been in place for about 1year 1/2 and hasn’t changed over that time , but can be flexible if thing come up

[Foolish man]

Does anyone have any experience of 2 borderlines in a relationship
My ex and mother of my child is in one now for a few weeks and already the impulsivity seems to be shinning through
There is talk of engagement already !