Can A Sim Remove Itself From Their Family Geneology?

Can A Sim Remove itself from the Family Geneology? 

So I just created this household with a male sim Akeem and the women Naomi. They ended up having a daughter together who is the oldest Star. By the time star was a child her mom had two more kids. When star aged up to a teen I had her meet this guy sim that would soon be her future husband/baby daddy. Every time the guy would come over the cougar mom would keep trying to flirt with him. Also when I would try to do family things the mom would act a little disassociated towards her daughter Star. So through all the flirting I ended up aging Star up to a young adult and had the guy move in with her and her family until they saved up enough for their own place. (Yes I could use cheats but it's a story progression here). The daughter and her new boyfriend are in the house helping her parents take care of her siblings while her parents work along with taking university classes. Every time the mom had alone time with the soon-to-be stepson she would always flirt with him until he eventually succumbed to her advances. They ended up having an affair that was strictly just flirting and suggestive conversation from what I saw while playing. I tried to move them out before anything could escalate but it seems while I was playing my other households they ended up doing the UNTHINKABLE. So I did the moving out social event(forgot what mod it came from) And the mom was distant from the daughter but the father was supportive and happy. I had them move out and into their new place. While finally grown and out of her parent's house Star and her new boyfriend began to build their new life together. They ended up getting engaged while welcoming a soon-to-be baby. But of course, her mom was not about to let this younger meat go so easily. She would always "come over to visit" her daughter to say "hi" although she doesn't talk to her daughter. I guess the father soon began to question the mom's whereabouts and started to come over also. While also coming to check on Star. Well during one of the events the mom got caught flirting with the son-in-law by her baby daddy. They ended up getting into a huge argument and the dad hated the son-in-law. At the parent's house, they are arguing nonstop about the affair with the mom until she admits she woohoo'ed with him(gasps). The parents ended up breaking up but the mom still lived there until she could move out. The father ended up having some fun with multiple Sim women to get over the betrayal(unlike his wife he likes women of age). At the oldest daughter's house Star is happy welcoming the new baby and preparing for her wedding although her fiance is stressed. On top of this, her father now despises her fiance. (Weird)The fiance ended up confessing to Star about the affair with her mother. She called off the engagement and the stress and heartbreak made her have a miscarriage!!!! Star now despised her parents and every interaction is always angry. After this, the mom is now newly single and her baby daddy is free and sleeping with a bunch of women while her daughter's fiance is now single. So I guess she took it as fate brought them together because this woman was still coming around to see him. The key information here is these people are still living in their respective households. The mom is with her ex-baby daddy and kids in their big family home while Star is with her ex-fiance at her house. And her mom is still coming over trying to smash her daughter's ex-fiance. Forget the fact you ruined your family household or betrayed your own daughter's trust but you just need Damien Youngleblood woohoo.  Because of all this, I ended up moving Damien into his own place but I was still deciding on what to do with the other three remaining kids and who should have custody over them. (Either they stay with Akeem or go live with Niamoi) When Damien gets his own house this was like granted access to him with no repercussions and the mom was over there faithfully. During their steamy sessions she ended up getting pregnant with Damien and they got engaged due to having a child together. So now she moved in and they ended up raising a child together. Through all this Akeem and Naomi are still co-parenting. So sometimes he will come with the kids or Niamoi will come over there to see the kids. During her visits, to see the kids at their former house she and Akeem ended up woohooing. (The drama!) And she ended up pregnant. around this time (ooohhhhh baby daddy drama!!!!) So during one of the visits to Niamoi and Damiens's house, Akeem came with two of the youngest kids to see their mother. When it got late and time for them to go Damien witnessed Niamoi flirting with Akeem and believed they were having an affair again. He denied the paternity of the current baby Naomi is pregnant with now. He asked her to get a paternity test. Damien was proving to be the father which helped solidify their relationship. He ended up not liking Akeem to come over anymore which makes sense since now all their kids are of reasonable age(Star: young adult, one now another young adult, a teen, and a child)So I ended up playing my sims again today and when I went to Stars family tree (because now I'm creating her a new man to have her dream family she deserves) it's showing her alone. Her family is gone!!??! When I went to her parent's family tree it has the other three kids and there's like one with a blank picture(not including Niaomis kids with Damien. Just the ones with her and Akeem) Star is blank and disappeared from her family's tree. I'm just wondering through all the trauma and now seeing your mom living your life that you could've had but lost it all literally due to her mom's actions can she disown her family? How did this happen? Can I add her back? I kinda don't know if I should due to all the drama but it's just got like weirdly lifelike quick.