How would you deal with this...

So basically my partner and I have been together for over a year. We have a baby boy due in June! He has 3 kids and I have 3 kids (including this one).

His ex from before me is OBSESSED with him. When we first started dating she stalked my fb, snap, insta etc. And always monitored his.

We blocked her on all accounts.

Then my ex and her started dating (yep, like wife swap 😳) anywho. She backed off for a little bit. Then my ex messaged and said “congratulations” . Cool. Whatever.

However then she started messaging hubbys other baby mom claiming she needed to get in contact etc.

So she messaged him a bunch of shit, trying to find out where he works etc (he didn’t tell her). They have NO kids together, didnt even date a year. Anywho, now she is reaching out to old friends, creating fake accounts to monitor my fb, etc. And I’m so fucking sick of it. Claims she wants to “serve” my partner (for what, I’m not even sure). And asking people for my address. However if her partner knew she was going this, she would have my address because he’s my ex and knows where I live 🤦🏼‍♀️

I’m seriously done with the petty drama, but it’s becoming hard to ignore... and I don’t want to jeopardize things with hubby by responding irrationally to her obsession with him.

Today an old friend messaged me, “call me it’s important” when I called she was like “I work with this girl now, and she’s asking for your number, your address, etc. Trying to get info on your partner and making crazy allegations about him. She’s trying to serve him (supposedly she told my friend it s for the money back she spent on his kids.. wtf?) and whatever. So my friend said she didn’t know (which she doesn’t I moved cities). Anywho, she says “ I know she has messaged several people for information and is planning on coming there when she finds out where you live . Like I’m 6 months pregnant, grow the fuck up!

Anywho.. how do I deal 😩 without being irrational, insecure and paying mind to it... I’m seriously struggling mentally due to depression .. I don’t need all this other shit...