Just asking, I've played this game a bunch of times and personally I am a big fan of Papyrus. However, I was curious if (similar to the one in Underfell) you would make a harem ending. I'm only curious because no matter which route I pick it always seems like canonically, Asriel, Sans, Gaster, and Papyrus are always in love with MC at some point.
Asriel is not too obvious since he's more friendly but in a way he still seems slightly romantic towards you (I mean he only met you once yet he comes back to meet you again despite getting lost, friendly or not that's so cute and I think could be a sign of attraction; then he gets friendzoned lol).
Sans obviously is stalking you, no matter which route you pick, so it doesn't make sense that he'd give up just cause you chose someone else.
Gaster offers to walk you home and shows clear interest for someone so cold and collected (who wouldn't have bothered with others; plus, he knows you're taken yet offers to walk you himself when he could send one of the brothers instead, Note; his tone is usually playful too, but in the walk you home scene his tone is more worried and concerned, again, not usual for someone like him unless he had obvious attachtment but he had just met you and cares for none of his brother's previous partners as much as you).
Papyrus, like Asriel, is also just very friendly but I can also see him slightly being in love with MC (because their relationship is closer than a boss and worker, even if you're dating one of the gaster brother's it's odd how attentive he is; as your boss) just not acting on it since it's not mutual.
Anyway, just asking because I have played all the routes as much as the chapters allow me, but personally I would like to see how each of them would react if they all chose to pursue you. Like, what would Chara say if Asriel was fighting for you despite the fact that the Gaster brothers want you? (Personally, I think it'd be funny to know what they would think about that; Note also I'm not asking for a harem ending between them all, just noting that they all seem to be in love, a harem ending would be cool, but I also wish there were scenes showing how each one might like you and if they'd fight or let it go) If they'd fight with each other or at least have a scene where they each let go out of respect for one another and your choice.
I apologize that this is so long, I just wanted to point out some stuff.... 0-0