Bro just reading that got me frustrated
Like when you are glad the trailer gave all the story away because you are NOT watching that shit.
Real
Found it through advanced search on Baka Updates. It’s called Complex. I actually really recommend it if you’re okay with sitting through some angst. The death is at the end, really short, and iirc it’s after a long life of happiness together.
Was really messed up but really good. Anyway, two childhood friends. They’re in love. I can’t remember if they’re in a relationship or not, but one guy brings a lesbian coworker home to visit his parents and pretend they’re in a relationship. They bang, she gets pregnant and he has to marry her. He and his friend are distant for years. The friend sees the wife when she’s on her death bed, and she admits she resented him/was scared of him taking her husband away. Wife dies, they eventually get together again.
The love interest dies in the end, but I’m pretty sure they lived a long, happy life together so I wasn’t super upset by it. Then some years pass and the remaining guy dies and they’re kids in the afterlife or a flashback together.
Kid also has a gay friend and they had a brief romance together but ultimately remained just friends. Kid got married and had a kid of his own when he grew up.