I don’t know what to do

[Minniechicken]

I will keep this short...
I have a wonderful relationship with my partner, he has children early teens, they don’t live with him, they are full time with their mother, a high conflict ex.( think stalking, trespassing, shouty abusive phone calls, you get the picture)
We ignore this.
He rarely gets to see them, only if they want to visit.
I keep some personal belongings at his house to make life easy.
A few weeks back one of the children admitted to going thru my personal drawers and tampering with my birth control to their dad, in a sort of bragging sense...”look what I’ve found and look what I’ve done”
I feel absolutely violated as I couldn’t believe that a person could do such a thing, let alone be stupid enough to admit .... they then went on to tell their dad they hope an accident doesn’t happen and if I got pregnant the baby would die anyway??????
I am stunned and in disbelief.
Their dad is very much ‘all kids go stickybeaking don’t worry about it’, and nothing has been said to the children, no repercussions, I’m to just deal with it.
Am I overreacting to feel so damn angry??

That right there would be a deal-breaker. Not what they did (although that's vile), but his reaction.

Leave him before you get more involved.

Yes all kids do snoop, and his kids have probably been taught you are the devil incarnate and have no respect for you, and I can understand his relationship with them is fragile, but the lack of consequences is not acceptable especially given the venom of what the child said. You may have years of this ahead - how do you feel about that?

You're not overreacting.

My ex husband's children who were 23 and 25, behaved like this. I wish I'd realised they weren't going to change before I married him. They, and his refusal to stand up to them, were the reason we split.