People who have dated or even married the sibling of an ex, how did that go? How did it affect the siblings/rest of the family?

1. My grandmother married my grandfather who had dated her sister previously. My great aunt said, verbatim "I couldn't stand his ass". My grandmother should have taken her advice because he abandoned the family when his daughter was ten weeks old to run off with another woman. Years after that daughter passed away in a hit-and-run he was able to weasel his way into an insurance class-action lawsuit my grandmother was involved in, and collect on his daughter's name even though he hadn't seen her in over twenty years. Never met him and he died about ten years ago, found in a hoarding situation, abandoned by his family because he was such an asshole, and lost his legs to uncontrolled diabetes.
   — GhostBeefSandwich


2. I know of somebody who has kids by 3 different brothers ... imagine your stepdad and uncle being the same person LoL
   — jjd5151


3. My dad dated BOTH of my moms sisters before he dated her. As long as I can remember everythings basically been cool. We all got along great, never any awkwardness, that may be because it was already like 6 years in the past by the time I was even born.
   — TerraformedOcelot






4. Not me, but my uncle and my dad. My dad started dating my uncle's ex. It caused a huge rift and everyone expected my uncle to just be cool with it. He hopped on a bus out of province and didn't speak to anyone in like, 3 years.
   — oceantyp3


5. My grandfather's mom died when he was around 1 year old and her sister moved in to help with the kids. One thing led to another and she married his father. So basically, my grandfathers stepmom was also his aunt. And he has no memories of his biological mum. It went pretty well as far as I've heard, but there could hardly be any conflict with one of the siblings dying being the main reason it happened.
   — Binnut


6. I'm a twin and my wife briefly dated my brother before me. It was comical and a bit of a joke now, but nobody cares. Actually, at my wedding I was up at the bar and my wife and brother were still sitting at the head table. People started clinking their glasses, so my brother leaned in a kissed her on her cheek.
   — A_Two_Slot_Toaster






7. My story is ~kinda~ related. My uncle married a gold digger. They were together for like, 10 years and had 3 kids. They split up in the 90s. A few years ago, we found out she married a cousin of ours. Same last name and everything. Our fam was disgusted....until we found out the cousin purposely never filed the marriage license. When they split up, she tried taking him to the cleaners, and got a nasty surprise when she found out they were never legally married. We had a family sized justice boner.
   — ihatemandymoore


8. My ex girlfriend's mother divorced her husband (gf's dad) and married her uncle. They ended up living in seperate apartments in the same house. Turns out he's gay. Needless to say that marriage didn't last either. Edit: I meant she married her ex-husband's brother, not her uncle.
   — Paranoidas


9. Not quite an ex, but I had a friend that I wanted to be more than friends with, but she was hesitant. We remained good friends. I ended up dating her younger sister. The older sis thought of me as a vile cradle robber and broke off contact with me.
   — lobster_conspiracy






10. this thread is hurting my brain. I need like charting software to keep everyones story straight.
    — Outrageous_Claims