'I discovered my stepmom was my dad's affair partner and her kids are my half-siblings.' UPDATED 3X

"My stepmom was my dad's affair partner."

Here's the original post:

When i (22M) was 4 my Dad(42M) divorced my mom. About a year later he introduced me to my stepmom (42F). She had two twin girls( N and D 22F). They married only a few months and went on to have three more kids, G( 16M) L(10M) and S(4F).=

My father adopted N and D because their bio father was not involved. I´ve always considered all 5 of them ( N,D,G,L and S) my siblings and we´ve never used step or half to refer to eachother. When i was 6, shortly after G´s birth, my mom passed away in a car accident and because of it i started to live with my dad full time.

My relationship with my stepmom improved from there. She never adopted me however she and my dad kept my mom´s memory alive by keeping in touch with my maternal grandparents and other relatives and visiting her grave with me on special days. I started calling her mom when i was around 7 or 8 and she refers to me as her eldest child ( me and the twins are the same age but i was born first)

After i turned 18 i started to work but i continued to live with my parents. Last week i was in the attic when i found a photo album that i have never seen before. I opened it and i saw several pictures of my dad, my stepmom and the twins when they were babies, which made no sense to me because, like i said we were toddlers when our parents met.

I decided to confront my parents about it. They were sit alone in the kitchen and asked them how they met, they told the same story, that soon after my dad´s divorce he met my stepmom though a mutual friend. when they were done i place one of the pictures on the table and told them that i wanted the truth.

I could tell by my dad´s face he understood what i meant. My dad told me that his marriage with my mom was going though a hard time because of my mom´s infertility issues, one day he met my stepmom and things escalated quickly and when he was ready to leave my mom she founded out that she was pregant but so did my stepmom at the same time,

he lied to my mom several times so that he could spend time with my stepmom and the twins, one day he admited to my mom that he was having an affair and they got divorced.

I looked at my stepmom and she was in tears, they both tried to say sorry but i just couldn´t stay in that house any longer. i´m currently staying at my gf´s parents house. I have talked to G, L and S, it pained me alot and G has said that S has cried for me and that just breaks my heart.

I have refused to talk with my parents or to N and D. The three of them lied to me. I feel like my life was built on lies and i am lost, i do not know what to do, i still love my sisters and my parents but they, especialy my parents, have hurted me. so much.

Edit:

I wanna thank everyone for their input on my situation. I have come to the conclusion that i should talk with N and D, i will send them a message so that we can meet in person and talk about it. I will also try to meet my younger siblings because i have not seen them since last week, just talked to them over the phone, and i missed them.

About my parents i do not know what i will do, i need to talk to them so that i can get atleast some cloesure but i don't know if i will be able to do it.

Thank you everyone!

Update #1: My sisters knew about our father's affair with their mother

Before anything i would like to thank everyone who commented on my last post.

I have seen common questions being asked i i'll reply to them:

-"Did your mom really had fertility issues?"-Yes, her family has told me many times she got really afected by it and that my birth was a got her over the moon.

-"Did the twins knew?"-i did not knew if they knew thats i talked to them.

Now onto the update;

After i made my post i made a group chat with the twins and texted them and we decided to met

My GF wanted to come with me but i told her i would rather go alone. When i arrived they were already there, they asked started to try to make small talk i just asked them if they knew, they started to tear up and told me that they always knew my dad but only knew that they were his daughters when they were 16 because our parents told them, they initially wanted to tell me but my dad and stepmom pressed them not to saying that if they told me it would destroy our family. I asked how were things at home, they told me that G and L started to be rude to them and to our parents while S was asking about me.

They asked me if i could forgive them, i told them that i still love them but i just need time they told me they understood. I said i was sorry and that i shouldn't blame them for our dad's mistakes, they told me they should have told me earlier, we hugged and cried together. We said our goodbyes and then i went home, my gf asked me how i was and i just broke down, she held me tight and told me to not hold on and that she was there for me, words cannot discrive how much i love this woman she has been my rock though out all of this.

I talked with my younger siblings this morning and we met at park. I hugged them really tight especialy S, i'm super atached to her and i am really protective of her i tried to explain to her, in a todler friendly way, that i was mad at our parets because they did a "bad thing" and not at her, she asked if i was ever going back home, i told her i didn't knew but i still loved her. I talked to my brothers to see how they were holding on,G and L told me they had been having a hard time because they never tough our parents could do something so horrible, they told me they missed me but understood why i had to leave.

We spent the morning together and after luch they went back home.

I haven't talk to my parents yet and i plan to call my maternal grandparents tonight to see if they knew or not.

Thank everyone for their support you guys have helped me a lot

Update #2: I talked with my grandparents about my father's affair

TLDR about my last two posts: My dad cheated on my mom with my stepmom, my twin stepsisters whom my father adopted are actually his bio daughters.

Yesterday i went to visit my maternal grandparents, first we mad the usual small talk and then i told them i needed to tell them something serious.

I layed it all out, the affair, the twins faternity everything . To say my grandparents were shocked would be an understatement. My grandma started to cry her heart out asking herself how could my dad "hurt my baby girl like that" my granddad was more angry he called my dad and stepmom everything he could think of.

My grandparents always tough that my parents had divorced because they didn't just worked out and because they were young and despite not being their son-in-law anymore they mainted a great relationship with my dad.

After my grandma calmed down she asked me how i was doing, i told her that its been hard but i am doing better now she said she still couldn't believe my dad would do something so horrible to my mom, my grandpa said if my dad is lucky they would never laid eyes on eachother because my grandpa would do something that would put him in jail, if you understand me.

We spent the rest of the day catching up and talking about my mom, overall it was very intense but opening up to people who loved my mother like i did helped me a bit.

Thanks for reading.