My fiancée just turned 27 and I'm 21, which isn't that big of an age gap at least not for me. So anyways, my fiancée came to visit me while I was away at college in April and she was so irritated with the fact he was spending time with me that she drove 6 hours to try and break us up and drag him home with her. She sat in the parking lot at my apartment for 8 hours just waiting for my fiancée to come out and talk to her. I went eventually went out and talked to her and she went crazy on me. She demanded I give her my engagement ring because my fiancée bought it with a credit card so it belongs to her. (I know for a fact he didn't because it's just a cheap ring that in my option doesn't look cheap. I'll add a pic of it at the end) She then grabbed my hand and tired to pull it off my finger.

About a month and a half ago I had a miscarriage, and my fmil found out and has been calling and texting me telling my that I'm lying that i didn't have a miscarriage that I'm just trying to take her son and husband away. (My future father in law things of me as a daughter he never had.) And I'm at my wits end and don't know what to do any more. Any advice or anything you want to add would be much appreciated.