She was always very jealous of our relationship (we've always been very much in love and have known since day one that we were going to get married as did both of our families and friends).
She would lie about things that I had said when she would start fights with me to try get my boyfriend to be on "her side" (which he never ended up on, bless him).
She would manipulate situations to get my boyfriend to spend time with her and not me (she was my supervisor at work and was angry that I was going to spend time with my boyfriend, so she convinced me that I "had" to come to work per my manager's request).
She was intensely jealous of me but also jealous of my boyfriend (he's an artist and she'd basically try to steal his work). She would always also tell my boyfriend that he was "weak" and "not very manly" (he's gentle with me and likes to cuddle, but he's not weak... he's strong and very attractive...) It seems to both my boyfriend and I that she had a weird obsession with him...
She is married and was married once in the past. My boyfriend and I have figured out a lot about things... she lied about her ex-husband cheating on her (she was actually cheating on him) and her ex-boyfriend abusing her. She's cheated on every single one of her significant others (we're assuming that she's cheating on her current husband or will soon).
She would basically scold and berate me and my boyfriend. She projected all of her issues onto us (my boyfriend and I are apparently very racist--she is... also, I'm a shy introverted push-over and I'm apparently bossy and controlling, etc.) She has tried to tell lies to mutual friends.
My boyfriend had been her roommate but he removed his things one day and left on July 31st. It was a gutsy move, he brought his sister and dad to help him and they had been worried that she would snap.
She obviously has very serious mental health issues (more than the depression and anxiety she takes medication for). My boyfriend still worries that she'll try to do something. I try to tell him its fine, but I can't promise anything. She is very unstable and her mother is also highly unstable. They are scheming and conniving and they both probably hate both of us right now... but especially me.
We know that she is looking at our facebooks and trying to make her relationship look as good as our's with profile pictures, etc. We know that she probably seems to think that my boyfriend will communicate with her again. She is lying to everyone about everything. My boyfriend feels like she isn't completely gone for good and that she'll try to come back and that it might not be pretty.
What should we do? We have no contact but my boyfriend can't help but intuitively feel like she'll be back..