My Bf’s Mom Is Cyberstalking/stalking Me And It’s Gone Too Far. How Can I Handle This Legally?? (if I Even Can)

Bare with me because I’ve never really been on this app before but at this point I’m frazzled and desperate for help. I’ve been dating my bf for well over a month and Its been wonderful except for his mother. When she found out we were dating she straight didn’t like me and kept grasping at straws for reasons to not like me, And I was fine with this. I have a kill em with kindness sorta vibe to these things. But over time she’s gotten worse with her hatred towards me. It started off as saying she thinks I’m “not on his level” to then “she’s a gold digger” till eventually she started straight name calling and called me a whore, crazy bitch, psychotic, walking red flag,low life, and many many more that are just straight unsettling considering she had barely heard about me and we’ve never gone past small talk. That didn’t bother me. What bothered me was that after my bf pretended to break up with me because she had essentially asked him to, and I explained that would be more trouble then it’s worth leading to him having said “Hey never mind we’re still together” she’s gotten worse! she has been finding my socials and lying about facts about them and using posts out of context and lying about details to him. A good example is that I have a Facebook I don’t use. She took a picture that was my profile picture almost a year ago(not posted but I don’t really know how facebook works so idk maybe it was) and texted it to him saying that it was posted a few months ago. She then tried to convince him that this was proof I was cheating on him. And I unfortunately wouldn’t be here if it were just that. No. She’s somehow found my mothers number and called and texted her!! If this is how she’s gotten after a month tbh I don’t want to let it get worse. Is there anything I can do legally?? There’s so many more examples but this was just from today. As in she did this all today!! I can’t take anymore and I hope someone can help me because I don’t think my mental health can handle anymore of this. Also she works for the town she lives in so I wouldn’t be surprised if she knows loopholes around this but I still need help (we’re in MA)