why the fuck, the game ignores all my choices in the epilogue, and make ian break up the "friends with the benefits" relationship with Lena!! Why????
It depends. What exactly are you referring to? During the talk at the beach at the end of Ch.12:
* If you've had Lena catch some feels for Ian she'll automatically try to change their relationship to something more, and Ian will reject it.
* Or Ian will try it if he's got feelings for Lena, and she will reject it if she doesn't (or fucked Axel)
* Otherwise they will talk about possibility one of them will get attached down the road, and depending on whether Ian got over Gillian he can either reassure Lena that this won't happen with
You can relax
(and the FWB arrangement will continue) or will have to admit that Lena is right, in which case they'll dissolve their arrangement.