How do you deal with an ex that’s having the new boyfriend around your kid?

We have a morality clause, but from what I can tell it’s basically a joke to try to get it enforced. I also haven’t got 100% proof because the car (wether or not he’s still there and just moved it) is gone by the morning.

She’s getting more sloppy, so I anticipate having evidence of it within a month. But like I said, I don’t feel like anyone will do anything about it. But I do feel like it would be a double standard where I’d be hung out to dry if it were the other way around.

And the whole thing is like I don’t care what she does, but I don’t want it around my kid. Child is only two, so not really any help, we were fostering ex’s family members before the divorce, she never notified DHR of the divorce, so I feel like they would have a bigger issue with it than the family court if I get proof and really wanted to be an asshole, but I also know that regardless of what happens, even if I were to get custody, it would still continue.

Any tips for dealing with the frustration of being powerless to what your kid is being exposed to?